Plivo’s cloud communication platform lets you send text messages globally via web and mobile apps. With our new feature, geo permissions for SMS, we’re putting more control of your SMS traffic into your hands. Geo permission offers a simple way to control which countries you want to enable or disable for SMS messages, without the need for developer support or code base changes.

SMS geo permissions is a tool to reduce the risk of SMS fraud and abuse. We suggest you maintain international geo permissions to protect your business from sending unwanted messaging.  

Advantages of maintaining international geo permissions

Here are some of the top reasons for you to consider managing your SMS traffic by geographic region.

• Prevent SMS fraud: Though it’s unlikely, your Plivo Auth ID or Auth Token may get compromised. If that happens and you have geo permission enabled, you can reduce the potential for a surcharge in SMS fees for messages sent to high-rate destinations.
• Reduce nonserviceable destinations: Among the 195 countries across the globe and more than 240 country codes, there are many places where your text messages could end up. If your web or mobile app caters to a specific geography or country, you may want to block SMS traffic to other countries and aligning your SMS spend with where your customers are concentrated.
• Avoid incorrect destination numbers: An incorrect or incomplete country code can land your text message in an unexpected part of the world. Some recipients’ phone numbers come from forms, and some form applications are not equipped to automatically geotag form inputs. Consider enabling geo permissions if you don’t validate user input using code.
• Improve customer segmentation: If you segment your SMS traffic using subaccounts, you can use geo permission to customize the reach for each subaccount. If a particular subaccount caters to a specific region, you can disable text messages to other destinations.  

Simple to set up, easy to maintain

Plivo customers can send messages to all countries, or with a click of a button disable messages to all countries except the ones where your audience is focused. By default we enable traffic to the US, Canada, Australia, India, and the country where your account is registered. To modify your geo permissions, navigate to Messaging > Geo Permissions on the Plivo console.

What happens if you send a text message to a disabled country?

If you try to send a text message to a country for which sending is disabled, Plivo will block it and you will not be charged for the message. On SMS logs, the message state will be “failed” and the error code will be 450.

Visit our documentation for more information about geo permissions.

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The global collaboration economy demands that voice conferencing providers seamlessly connect people for a reliable communication experience. Here are three ways Plivo optimizes our platform to provide clear, reliable conference calling.

1. Uniform customer experience with global coverage

When your customers get on a conference call, you want to provide them a hassle-free experience with easy connections and clear conversation quality. Plivo’s conference solution fits your needs at every stage:

• Coverage: We have a comprehensive network of Tier 1 carriers in more than 190 countries with voice and SMS to more than 1,600 global carrier networks.
• Call quality: In another post, we covered the steps we’ve taken to build our infrastructure with globally located data centers and failover mechanisms. Our optimized global routing minimizes latency, jitter, and packet loss.
• Proactive testing:  With the help of quality-based routing and distributed test nodes, we continuously test and improve call quality.
• Redundancy: We maintain redundancy and auto-failovers across all layers of our carrier integration system. This setup protects our customers from downstream risks such as carrier outages and network failures.
• Direct connections with SLAs: Because we maintain premium direct routes in more than 190 countries, we guarantee timely delivery to any mobile network in the world. We don’t use aggregators — we work directly with all of the major telecom operators in every region, which helps us deliver better quality and resolve issues rapidly.  

2. An architecture that improves call quality and minimizes call latency

We have seven points of presence (PoP) locations spread across five continents — in California, Virginia, Frankfurt, São Paulo, Mumbai, Singapore, and Sydney. We established these PoPs to minimize latency and optimize global routing.

3. Capabilities to derive analytical insights

In communications, network flaws like packet loss, jitter, and latency can reduce call quality. Having data about your network traffic is the only way to monitor performance to inform real-time decisions.

Plivo’s analytics let you track metrics such as latency, jitter, packet loss, and Mean Opinion Score (MOS), which in turn lets you assess call quality, enables faster debugging of issues, and provides real-time detection of network problems.

Plivo can provide feedback after every conference call to help you and your customers troubleshoot issues. Imagine being able to debug or troubleshoot and determine whether poor call quality was due to a congested network connection or a bad headset.

One more thing

Our goal at Plivo is to simplify business communications. Features like direct relationships with carriers, optimized PoP infrastructure, and real-time analytics are just a few of the ways we help make it super simple for you to integrate voice communications into your applications. We also understand that you may have questions or need support, so we offer all of our customers round-the-clock support at no extra cost.

Connect with us and let us answer any questions you have.

We released Zentrunk Outbound in January — now we bring you Zentrunk Inbound, which is available for early access.

More and more companies are migrating from outdated, analog PSTN phone systems to VoIP services to make low-cost calls around the world with high reliability and instant scale. Session Initiation Protocol and SIP trunking services make this migration possible. A SIP trunk is like a virtual phone line, enabling you to connect voice calls over the internet to anyone with a phone, anywhere in the world.

While SIP trunking first gained traction among cloud-native companies, it has rapidly become a solution for non-cloud-native companies as well. Across industries, companies looking for ways to modernize their call centers, conferencing services, PBX and phone systems have turned to SIP trunking to deliver a more cost-effective solution.

Zentrunk, Plivo’s cloud-based SIP trunking solution, is SIP trunking with superpowers: instant provisioning of phone numbers, no limits on concurrent calls, no contracts or minimum spend, virtually unlimited global scalability, and the fastest setup you’ve ever seen.

Today, Zentrunk’s full-service — inbound and outbound — SIP trunking solution is publicly available for the first time. Here’s what you can expect:

Set up in minutes

In just a few clicks, Zentrunk can plug into your existing cloud-based or on-premises infrastructure to easily expand your capacity, coverage, and phone number inventory.

Through the self-service Plivo console, you can set up a trunk, link your numbers to the trunk, and receive calls on your VoIP Infrastructure, all in less than five minutes — no waiting period or capacity restrictions.   Also, through the console, you have a simple way to manage your trunks and view call detail records (CDR) so you can monitor usage.  

Instantly provision DIDs

The new inbound feature set we’ve added allows you to receive voice calls on your voice infrastructure from any PSTN phone number. With Zentrunk, you can instantly provision DID (direct inward dialing) phone numbers from our inventory of more than five million numbers across more than 70 countries. Through the Plivo console, you can find and provision numbers to match your needs — fixed, mobile, and toll-free — as well as get access to unlimited call capacity with every number.

Get global reach  

Zentrunk now facilitates both inbound and outbound calls globally. For global organizations, the ability to provide regional customers with a local number to call can improve engagement and build trust. Plivo partners with local carriers in 195 countries, so you can easily connect with customers around the world without having to navigate the complexity of carrier negotiations. We’ll do all the heavy lifting for you.  

Pay as you go

Whether you’re using inbound or outbound SIP trunking services, the payment structure is the same. You pay only for what you use. You don’t need to worry about long-term contracts, capacity planning, or channel limits. In addition, when it comes to scaling, Zentrunk makes it easy to add more capacity to your existing VoIP system without investing in additional infrastructure.    

Access support 24/7

While SIP trunking is relatively straightforward, you may have implementation questions or need to troubleshoot something, especially if you’re layering a SIP trunking solution onto your existing PBX system. Plivo that offers free support to all customers, 24/7.  

With the pace of technological innovation and the increasingly high expectations for speed to market, why settle for outdated, slow-moving, high-cost, locked-in contract types of service? Untether your organization and try Zentrunk SIP trunking. Get in touch with Plivo experts about whether Zentrunk is a good solution for your business.

Ready to get started? Check out our Zentrunk getting started guide.

VoIP telephony provides a variety of benefits over traditional phone networks, including lower costs, more flexibility, and more convenience, but the VoIP solutions offered by a legacy phone company carry drawbacks such as limited coverage and long-term, inflexible contracts.

SIP trunking solves many of these issues. With SIP trunks, VoIP calls can run through a cloud-based provider that routes calls efficiently based on location to deliver premium call quality and global coverage. Plus, cloud-based providers offer flexible contracts and pricing models that make it possible to test their solutions while you still have phone service through a traditional telecom.

Consider testing a backup SIP trunking solution while you’re still under contract with a traditional provider. That way, when your existing contract ends, you’ll have the firsthand experience you need to  decide whether switching to SIP trunking makes sense for your company.

Other benefits to setting up a backup SIP trunking solution include:

1. Broader coverage and foolproof failover

Adding a backup SIP trunking solution lets you make calls even when your main provider can’t deliver, either because of a technical failure or because of limited geographical coverage. Because SIP trunking providers have relationships with multiple carrier networks, there is no single point of failure. This built-in redundancy means that when your main carrier’s network experiences an outage, your backup SIP trunking provider can route calls over a different network. Having multiple carrier relationships also allows SIP trunking providers to have broad geographical coverage while being able to route calls locally to keep costs low. Zentrunk from Plivo, for instance, works with 1,600 carrier networks to provide users the ability to communicate with anyone in 195 countries.

2.  Risk-free, low-cost testing

Many SIP trunking providers offer free setup and simple pay-as-you-go pricing, so it won’t cost anything to put this backup solution in place, and you can try it out at whatever scale you want to keep expenses down. For example, if you want to use a SIP trunking provider as a failover solution, you’ll only pay for the solution when your existing network experiences downtime. If there’s no downtime, you won’t pay anything, and if there is a period of failure, you’ll be glad you have a backup solution in place.

A SIP trunking provider may save you money on international calls too because they can leverage relationships with multiple carriers to route traffic over local networks. If your existing carrier has cost-prohibitive rates for certain markets, you can test a SIP trunking solution and save money.  

3. Added capacity, just when you need it

If you’re in a long-term contract with a traditional phone network, you might be limited to a set amount of channels or phone numbers for the duration of your contract. If your needs change, you can tap into additional capacity by testing out a backup SIP trunking solution. For example, if your company experiences increased call volumes during the winter holiday season, you may need additional capacity for that period. Using a SIP trunking solution allows you to quickly scale up during that time and then scale back down after the holiday season, without having to renegotiate your contract or pay administrative fees.

4. Easy setup and instant provisioning

Testing a cloud-based SIP trunking solution tends to be an easy process, with setup taking just a few minutes. Rather than dealing with complex programming or enduring wait times for phone number purchase, you can often instantly search and provision numbers to match your needs for fixed, mobile, or toll-free numbers. You can also get unlimited call capacity with every number, and every line can be added remotely. Zentrunk, for instance, lets you set up a trunk, link your numbers to the trunk, and send and receive calls on your VoIP Infrastructure in less than five minutes.

Furthermore, cloud-based SIP trunking providers offer on-demand analytics through a self-service portal, so you can quickly see activity differences between departments or office locations. This gives you a better understanding of your capacity needs, which could be helpful when your existing contract ends.

Overall, SIP trunking providers tend to be simple to set up quickly and with minimal risk. You can experience what it’s like to use SIP trunks without getting locked into long-term contracts, and you can then decide what type of provider you’d like to move forward with once your existing contract ends. And in doing so, you get the benefit of a backup solution that provides a security blanket for your setup in the event something goes wrong with your existing carrier.

To better understand how to select a SIP trunk provider to test out as a backup solution, see our blog post on 10 factors to consider. To learn more about SIP trunking and see how Zentrunk can help with your communications needs, get in touch with our team.

Migrating from a legacy Private Branch Exchange (PBX) telecom system — where calls are transmitted using a Primary Rate Interface (PRI) T1 line — to a SIP trunking service — where calls are transmitted over the internet using Voice over Internet Protocol (VoIP)—offers five key advantages:

1. Cost savings

Although phone service comes down to more than cost, there’s no denying the attractiveness of saving money when you migrate from a legacy telecom system to a SIP trunking provider. SIP trunks can save you money in two ways:

• SIP trunks reduce the costs of long-distance and international calls, because calls travel most of the way over IP networks before connecting with the public switched telephone network (PTSN) to route calls locally to their destinations. Because of that, long-distance calls are often charged as local calls.
• While legacy telecom providers tend to charge based on capacities, such as offering a certain amount of minutes per month or even unlimited minutes with fixed, lengthy contracts, SIP trunk providers typically offer pay-as-you-go pricing. This means that you only pay for the phone service you use, rather than getting locked into expensive monthly plans where you pay for capacity you don’t consume.

2. Quick scalability

Whether your business adds new employees to your headquarters, has seasonal requirements such as needing additional call capacity around the winter holidays, or needs to pare down phone service that’s not being used, SIP trunks can easily be scaled up or down. SIP trunk solutions are cloud-based, so once the initial system is set up, you can easily add or remove lines digitally. In comparison, legacy telecom systems typically require complex physical installations to add more lines, and inflexible contracts make it difficult and costly to scale down if your organization needs to make a change.

3. Global reach

Similar to the advantages of scaling with SIP trunks, cloud-based VoIP systems make it easier to add global coverage than legacy systems do. For one, SIP trunking providers work with multiple telecom carriers to ensure global coverage, rather than the way a legacy telecom provider might rely on only its own carrier network. Zentrunk from Plivo, for instance, works with more than 1,600 carrier networks to provide users the ability to communicate with anyone in more than 190 countries. These partnerships help ensure both premium call quality and broad coverage. Moreover, SIP trunk users can easily add local, national, mobile, and toll-free numbers. If your business has clients in several countries, those customers can reach you via a number that’s convenient and cost-effective for them.

4. Easy support

When you need to add services or run into an issue with your hardware, you want a quick, painless solution. Legacy telecom providers don’t always offer 24/7 support, and their levels of dedicated service can vary based on customer size or location. SIP trunking providers, by contrast, tend to be available 24/7 to provide support to help you troubleshoot a technology problem or adjust your service.

5. Transparency

Using SIP trunks tend to come with more transparency than legacy telecom systems in areas ranging from pricing to usage. Pay-as-you-go pricing makes it clear exactly what you’re paying for, and you can often choose different pricing models from your provider based on your needs, as opposed to getting locked into an inflexible, hard-to-decipher contract from a legacy provider. In addition, the cloud-based nature of SIP trunk providers makes it easy to digitally keep track of phone usage, even for specific lines. Zentrunk, for instance, offers a self-service portal where users can view call detail records (CDR) that help you clearly understand your phone service usage, such as determining which offices or departments incur the most phone costs.

Migrating from a legacy telecom system to a cloud-based VoIP solution using SIP trunks offers several advantages, and the decision comes down to far more than cost. Switching to SIP trunks can improve your overall phone service in terms of both technology features and experience.

To better understand how to select the right SIP trunk provider for your needs, see our blog post on 10 factors to consider. To learn more about SIP trunking and see how Zentrunk can help with your communications needs, get in touch with our team.

Proactive error correction is always better than reactive fire-fighting — and that philosophy applies to your business communication too. Plivo now offers proactive alerts when we see a dip in your SMS delivery rate.

A small feature with a big impact

SMS is a reliable communication channel and works flawlessly when implemented correctly. When your end users depend on SMS for account signups, security, chat, or notifications, a small blip in SMS deliveries can wreak havoc on the end user experience.

Text messages can fail to be delivered due to some basic issues, including:

• Invalid destination number format: When a destination number is improperly formatted — without country code or area code, for example — the text message is bound to fail.
• Blocked phone number: In the US and Canada, customers are required to use a Plivo phone number to send SMS messages. Phone numbers have certain restrictions on quantity and content of text messages. In the US, for example, long code numbers should not be used to send more than 200 messages in a day.  In the case of content or throughput issues, a phone number might get blocked, and thereafter fail to deliver messages.    
• Operator downtime: Technical issues or natural calamity in any region may affect SMS delivery. Severe operator downtime or issue with coverage causes text messages to fail.
• Callback failure: This feature is specific to inbound text messages. If you have issues with your server, the inbound messages may fail to be delivered.

The logic behind proactive alerts

We’ve introduced advanced traffic pattern monitoring to give our customers a better way to be informed of potential SMS delivery issues. The algorithm does not access text content or the destination number; it simply works on SMS volume and delivery rate percentage. The monitoring system checks your account SMS delivery rate every 15 minutes for delivery in the last 60 minutes. This value is compared with the average performance of your traffic in the past 7 days. If the variance is more than 25%, we’ll send a message to the registered email address you set up when you activated your account.  

Proactive alerts is an optional feature that you can enable from the Messaging > Alerts page of the console. If you do, you’ll receive an alert on your registered email address if there’s a drop in your SMS delivery rate. Here’s an example of what you might see if you enable this feature.

In this age of agile development and rapid prototyping, no one wants to spend weeks building communication applications. In our continuous endeavor to simplify business communications, we created a whole new way of building communication apps — Plivo High-Level Objects. PHLO drastically reduces coding time and cuts integration steps, thereby helping developers design collaboratively, build visually, and deploy quickly — and now it’s available in general release.

We’ve added several features to PHLO to enhance how workflows can interact with your data.

• The HTTP request component offers more authentication options and support for static and dynamic URLs make interaction with your APIs or third-party resources easy.
• With the HTTP request component, you can parse multilevel JSON files to interact with larger and more complex data.  
• The branch component now automatically typecasts variables when comparing to ensure variables are correctly processed and help you build better logic for your workflows.
• You can now assign PHLOs to subaccounts and have one PHLO trigger another, which helps with account management and application logic.  

Fortified for scale and uptime

PHLO eases the way for you to deploy and maintain communication applications. You don’t host your apps, we do. This convenience for you comes with added responsibility for us. We’ve engineered for reliability, quality, and 99.95% uptime to make sure your applications scale with ease.  

Server-side SDK and debugging

We’ve added more ways to control your PHLO with API requests. You can now trigger your PHLO application via an API request using our SDKs in all supported languages. The multiparty call component has multiple triggers to asynchronously modify the states of the members on the call. You can now add members to a call and make state changes like mute, unmute, transfer, and disconnect a member using a Plivo SDK.

In addition, we’ve added more visibility on application logs in your account to provide better debugging and error correction.

A better way to build communication apps

With PHLO, every action is a component: phone menus, prompts, SMS menus, conference bridges, call forwarding, SMS notifications. These components, packaged as templates, drastically reduce the number of lines of code required to create custom business logic. You can add your own custom code and create unique communication applications for your business with 80% less code.

Unlike visual application builders that only automate simple workflows for a limited set of use cases, PHLO provides 100% functional parity with Plivo APIs and XML, enabling use cases from simple ones like order notifications to complex ones like a full-featured call center. PHLO also simplifies the integration and deployment pipeline so that you can ship more code faster.

PHLO runs on Plivo’s cloud infrastructure. This lets you focus on your actual business use case, rather than worrying what’s under the hood.

Getting started with PHLO

The best way to get started is to sign up and create your first PHLO. PHLO has everything you need to create your app in minutes. We’ve also put together a collection of use case video tutorials to get you started quickly.

• Voice notification
• Voice alert
• SMS alert
• SMS survey
• Conference with PIN
• PINless conference
• Call forwarding
• Phone system IVR

One last thing — the price

In addition to bringing in 100% Plivo API support out of the box, we’re also making it FREE to use PHLO.

Sign up and start building with PHLO today. Have questions? Get in touch with an expert and request a live demo.

Businesses increasingly turn to SIP trunking, where a company’s voice calls are transmitted over the internet rather than telephone lines, to save money and improve communications capabilities. The popularity of SIP trunking has brought many providers into the market, which complicates the picture for CTOs, IT leads, and others responsible for choosing a partner.

To make the process of choosing a SIP trunk provider easier, consider these 10 factors:

1. Voice quality
Without facilitating high-quality communications, the other benefits of SIP trunking fall flat. SIP trunk providers need to ensure that users can make and receive clear phone calls efficiently. Look for a provider that works with Tier 1 voice carriers to establish your calls while avoiding those who use least-cost routing (LCR), which compromises quality and optimizes for cost. Also, look for a SIP trunk provider that has at least one point of presence (PoP) in each of the regions you want to reach to ensure low latency and high call clarity.  

2. Coverage
SIP trunk providers enable companies to expand their VoIP infrastructure without having to negotiate with new local carriers. Look for a provider that can facilitate outbound calls globally while providing local numbers across countries to facilitate inbound calls — for example, a SIP trunk provider that offers a US organization a local number for customers in the UK to call so they don’t have to call long distance. Some SIP trunk providers offer local, national, toll-free, and mobile numbers, thereby facilitating client convenience while allowing organizations to choose their preferred inbound areas codes.

3. Reliability
If calls don’t consistently go through, SIP trunking loses value. Look for providers with redundant infrastructure and multiple carrier connections across geographies to ensure reliability. Zentrunk from Plivo, for instance, promises 99.95% uptime and is interconnected with several Tier 1 carriers in each region to maximize connection reliability.

4. Cost
One of the main benefits of SIP trunking is cost savings. Long distance calling, including international calling, tends to be cheaper over SIP trunks. Plus, pay-as-you-go pricing models give you the flexibility to pay for only what you need versus paying upfront for channels or bundles of service you may not need. In addition, when it comes to scaling, you can move to SIP trunking and easily add capacity to your existing VoIP system without investing in additional infrastructure. Different SIP trunk providers offer different costs and pricing models, so look for one that provides the most cost savings based on the level of service your business needs.

5. Interoperability
If your business has already invested in a phone network, you want a provider that offers interoperability with your existing infrastructure. A good SIP trunk provider should provide interoperability with standard softswitches and IP PBXs.

6. Security
Security is always a concern for businesses, and that should extend to communications networks as well. Consider how different SIP trunk providers protect your network so that calls don’t get intercepted. Zentrunk, for instance, provides IP authentication to protect access to your SIP trunks and encrypts trunks using Transport Layer Security (TLS) and Secure Real-time Transport Protocol (SRTP).

7. Scalability
SIP trunking is easy to scale up or down as business needs change. However, SIP trunk providers differ in terms of how they scale alongside your business. Look for one that can meet your needs and fit your budget when you’re adding connections in different offices around the world.

8. Flexibility
Similar to scalability, SIP trunk providers offer different levels of flexibility that can help your business. For example, some providers offer flexible contracts, allowing you to adjust services as needed rather than being locked into undesirable terms. SIP trunk providers can also offer flexibility in areas such as the ability to change phone numbers, adjust services, add IP access control lists, and configure softphone compatibility.

9. Expertise
Before signing up with a provider, explore the depth of their knowledge of the technology and complex ecosystem behind SIP trunking, as those factors can impact your success during complex installations, troubleshooting, and scaling. Think about it in terms of whether you’d want to see a doctor who can recognize symptoms and prescribe a medication versus a doctor who understands the causes of the symptoms and how the medication addresses the underlying issues. The latter’s expertise can make a difference, particularly when a situation takes an unexpected turn.

10. Simplicity
Lastly, using SIP trunking should simplify your communications and IT landscape rather than adding complexity. Look for a SIP trunk provider that makes installation, administration, and maintenance easy. While SIP trunking is relatively straightforward, you may have implementation questions or need to troubleshoot, especially if you’re adding a SIP trunking solution onto your existing PBX system. Look for a provider that offers free support to customers 24/7, and one that offers an intuitive way to manage and configure trunks and to view call detail records (CDR) so you can monitor usage at any time.  

By considering these 10 factors, your business can find the right SIP trunk provider for your needs to help you realize the full benefits of this technology.

To learn more about SIP trunking and to see how Zentrunk can help with your communications needs, get in touch with our team.

Our goal at Plivo is to simplify business communications, and that philosophy applies not only to building and deploying software but also to tracking and debugging. We aim to give our developers best-in-class debugging tools so they can spot and fix bugs faster. We just rolled out a major update that includes feature updates to help developers debug applications.

New information on SMS logs

Based on input from our customers and an internal system audit, we’ve added information on SMS logs to unify data related to your text messages. Here are some of the most noticeable changes:

Destination country: We’ve added a new field that displays a two-character country code for each message destination. When you hover on the two-character code, the complete country name is displayed. This helps you quickly identify potential text misroutes that may be caused by missing country codes or incorrect destination number formatting.  

SMS error reason: We’ve added an Error Reason column that lets you quickly identify the cause of failed incoming or outgoing SMS messages, whether it’s from carrier errors or message callback errors. You can also filter logs based on destination or message state, giving you a telescopic view that helps you detect issues.

Carrier surcharge: Carriers in certain countries charge a passthrough fee to receive MT (Mobile Terminated) and MO (Mobile Originated) messages. Now you can hover on the information icon next to the SMS charge to display this information.

Subaccount filter: You can now filter the SMS logs in your account by subaccount to help pinpoint issues that affect a particular end user segment.

Downloadable information: New information on message detail records (MDR) joins all the existing information downloaded in the form of CSV files in your account.

More visibility on each text message

This upgrade includes an all-new SMS detail page. Click on the timestamp for a text message under SMS logs and you’re transported to a detailed information window that’s specific to the text message. Here are the highlights from the page.

Message text body: The fully formatted message body is now clearly displayed in the debug UI. You no longer need to dig through server logs to retrieve the message.

Note: If you’ve redacted the message content, it will not be visible on this UI. Learn more about message content redaction.

Number-based filter: Click on the source number or destination number related to a text message to be redirected to SMS logs with that number set as a filter. You can filter all messages that originated from or terminated to the number in question.

SMS callback attempts: All HTTP callback requests made by Plivo to your endpoint in relation to the SMS are now listed in the Debug UI.

Message state transition visualizer

We’ve added an image that visually represents message state transitions, along with the time delay between states. It helps you get complete visibility into the lifecycle of a message. Metrics such as time spent in the queue help identify bottlenecks in your SMS traffic pipeline.

In this example we can see that the message was in the queue for 497 milliseconds and was delivered to the recipient two seconds after leaving the Plivo system.

Accessing the new UI

To access the new features, go to the Messages > Logs page of the Plivo console.