Troubleshooting Cisco SIP Trunks, CUBEs, and URI Dial Plans

SIP is used extensively in today’s collaboration deployments. You must be able to get traces and debugs from a variety of sources to troubleshoot effectively. This course will demonstrate solutions that will help you diagnose and solve SIP problems.
Course info
Level
Intermediate
Updated
Sep 25, 2018
Duration
3h 12m
Table of contents
Course Overview
Examining SIP Traces, Logs, and Debugs
Troubleshooting SIP CUCM Trunks
Troubleshooting SIP CUBEs - Session Border Controllers
Troubleshooting SIP URI Call Routing on the CUBE and CUCM
Solving SIP Troubleshooting Tickets
Description
Course info
Level
Intermediate
Updated
Sep 25, 2018
Duration
3h 12m
Description

In today’s fast-paced world, the ability to communicate using real-time IP voice and video technology is a business necessity. In this course, Troubleshooting Cisco SIP Trunks, CUBEs, and URI Dial Plans, you will learn how to diagnose SIP problems, use various tools and techniques to collect traces and debugs, understand the call process, and come up with solutions. First, you will see how to identify the major components of the Cisco SIP Collaboration solution you’re working with so that you will be able to isolate the problem areas quickly during troubleshooting. Next, you will be able to use a variety of Cisco debug, trace, and monitoring tools that are available to assist with your troubleshooting. Finally, you will learn how to implement an action plan that uses a systematic troubleshooting approach to provide consistent network services and minimize service interruptions. When you’re finished with this course, you’ll have the skills and knowledge needed to troubleshoot SIP trunks, CUBEs, and URI components that will help you diagnose and troubleshoot issues in Cisco Collaboration deployments.

About the author
About the author

Sean Douglas has more than 17 years of experience working extensively with Cisco technology. He is a Cisco Systems Engineer that consults with a variety of clients to design, implement, and maintain their Cisco Collaboration solutions. Sean is CCNP in Routing and Switching, Wireless, and Collaboration.

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi everyone. My name is Sean Douglas, and I want to welcome you to my course, Troubleshooting Cisco SIP Trunks, CUBEs, and URI Dial Plans. I've been a Cisco engineer and instructor for nearly two decades. In that time, I've taught thousands of adults a lot of Cisco, including IP networking, voice and video collaboration, and especially how to make their Cisco technology work for them and what to do when it's not working. In this course, which is part of an ongoing series, we're going to cover one of my favorite topics, troubleshooting SIP. SIP is used extensively in today's collaboration deployments, and being able to troubleshoot it is an absolute necessity for collaboration administrators. This course is designed to make sure that you understand exactly how to diagnose SIP problems so that when end users tell you it won't let me or it worked before you started working here, you'll be prepared to precisely identify the exact issue and come up with a solution. We're going to definitely give you real-world solutions. We're going to show you how to troubleshoot SIP collaboration solutions, and we'll do it in a way that's easy to understand. We're going to use extensive demonstrations, hands-on, step-by-step configuration examples so that by the end of this course, you'll be able to identify problems, gather facts, create an action plan, and solve the issue. We've designed the course to have extensive hands-on examples so that you'll be able to reference our step-by-step demonstrations in your day-to-day career. Before beginning this course, you should have a solid understanding of Cisco Unified Communication Manager either by having watched the previous courses, Building Gateways, SIP trunks, and CUBEs for Cisco Collaboration, Building a Cisco SIP URI-based Dial Plan with ILS, SME and Unified Mobility, Troubleshooting User, Gateway, and Endpoint Registration Issues, or being at about the CCNA collaboration level or have some experience working with Cisco Unified Communications Manager. I hope you'll join us build solutions in the Troubleshooting Cisco, SIP Trunks, CUBEs, and URI Dial Plan course at Pluralsight.

Troubleshooting SIP CUBEs - Session Border Controllers
Traditional telephony solutions, ISDN, PRI, analog, and digital are being phased out and replace with SIP trunks. To set up a SIP trunk, we just need to go to Unified Communication Manager, add a new SIP trunk, and point it to the carrier's IP address. It's that simple, at least on paper. But in a production environment, there's one word that describes the goal of most collaboration administrators, predictability. We need to implement policy, and that means we need a CUBE, a session border controller. CUBEs give us the ability to create policy, but they also add a whole new level of complexity, inbound dial peers, outbound dial peers, codecs, multiple IP addresses, a lot can go wrong. And in this module, we're going to show you what to do when that happens. We're going to make sure that you have a plan so that you'll know exactly what to do when there's trouble with your SIP CUBE. Hi everyone, I'm Sean Douglas, and welcome to the module, Troubleshooting SIP CUBEs - Session Border Controllers. In this module, we're going to demonstrate how to examine and troubleshoot SIP CUBE configuration issues. Our goals for this module are going to be to demonstrate how to troubleshoot and fix our CUBE deployments. We're going to demonstrate how to analyze the configuration, especially the dial peers. Every call that goes into the CUBE needs to match an inbound dial peer, and every call that's going to leave the CUBE needs to match an outbound dial peer. There are a lot of optional commands that can be added to these dial peers, but we'll show you how to sort through them and find the required information. We'll demonstrate which configuration changes to make. And finally, we'll demonstrate how we can use debugs and Cisco's Dialed Number Analyzer for CUBE to help assist us with diagnosing and troubleshooting our CUBE deployments.

Troubleshooting SIP URI Call Routing on the CUBE and CUCM
I'm old enough to remember when telephones just had a single number. If you wanted to call someone, you had to know that one number because that was it. Now with Unified Communication Manager, our IP phones can have many numbers. DNs, directory numbers or extensions, enterprise alternate numbers plus E164 enterprise alternate numbers, and up to five URIs, which are similar to or can even be email addresses. With global dial plan replication, GDPR, we can share these numbers across various clusters. It's great for collaboration administrators because it gives us the ability to implement policy. It's great for end users because they can call each other using these addresses. Oh yeah, it's great, except when it doesn't work. But that's what we're here to help with. Hi everyone, I'm Sean Douglas, and welcome to the module, Troubleshooting SIP URI Call routing on the CUBE and CUCM. In this module, we're going to show you how to troubleshoot URI dialing using ILS and GDPR on Unified Communication Manager and using URI dialing over our CUBE router. After this module, you'll be able to diagnose and fix SIP URI dialing issues so that your users can enjoy its convenience, and your administrators can dynamically share these addresses across multiple clusters. In this module, we're going to demonstrate how to troubleshoot SIP URI dialing, ILS, and GDPR. We're going to demonstrate how to troubleshoot these on our Unified Communication Manager. We're going to demonstrate how to troubleshoot URI dialing on our CUBE. We can route calls at our CUBE based on URI addresses, essentially email addresses instead of having to dial numbers and send them to the CUBE. Our CUBEs are really powerful devices, and they can support URI dialing as long as they're configured properly. In this module, we'll examine our CUBE and make sure that URI dialing works.

Solving SIP Troubleshooting Tickets
There's rarely an easy button when troubleshooting. I mean there are so many users and administrators and components to configure and departments to work with and organizations that have to come together in order to make a simple phone call. And when something's not working and they call you, the class starts ticking. How come it doesn't work? What's wrong? It won't let me. It worked before you started working here. We've certainly been there, and we know that feeling. We've built this module to help. We're going to save you time and give you solutions. Hi everyone, I'm Sean Douglas. And welcome to the module, Solving SIP Troubleshooting Tickets. In this module, we're going to examine and solve a variety of trouble tickets. We're going to show you what to look for when troubleshooting common SIP calling issues on your CUBE and on your Cisco Unified Communication Manager server. Our goals for this module are going to be to demonstrate how to diagnose and solve common SIP calling issues. We're going to use SIP debugs and troubleshoot calls to the PSTN that are going through our CUBE using our SIP trunk. We're also going to demonstrate how we can use SIP debugs on our CUBE so we can examine SIP messages and solve URI dialing issues. After completing this module, you'll be more familiar with the SIP messages that pass through our CUBE. You'll understand how to read the SIP responses so that you can diagnose and troubleshoot your own SIP calling issues in your collaboration environment.