I have a customer with 15 users who are using third party "One IP Telephone System. The VoIP phones are connected a Cisco Switch and Cisco switch is connected to Cisco 871 Router. They are using cable modem for SIP and Internet.
They are able to make outbound calls but with incoming calls, One person is able to answer the phone but after that all other phones still ring but as soon as the call is answered the call is dropped) They are using are 3rd party company for there VOIP service.
Previously, they were using Linksys router and there was no issue with the incoming calls, but after replacing Linksys with Cisco Router they are having issues with incoming calls.
I am not able to troubleshoot the issue, and will appreciate if someone can help
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...