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How to troubleshoot one-way / no audio issues - Cisco ...
https://community.cisco.com/t5/collaboration-voice-and-video/how-to-troubleshoot-one-way-no-audio-issues/ta-p/3164442
Note: Cisco Unified Communications Manager only uses 24576-32767 although other devices use the full range ... This example shows a one …
Solved: Problems with SIP Trunk (one way audio) - Cisco ...
https://community.cisco.com/t5/unified-communications/problems-with-sip-trunk-one-way-audio/td-p/2089593
Problems with SIP Trunk (one way audio) Hi everyone ! Our client is testing a new SIP trunk implementation with a different ISP. They have a SIP trunk between a Cisco 2911 and ISP for PSTN accesss, and a H323 Trunk between CUCM ver 7.1.3.30000-1 for proper call routing to that Cisco2911 gateway. Here you have Cisco 2911 configuration:
How to punch SIP One Way Audio in the face - UCPros
https://ucpros.net/sip-one-way-audio/
we can go ahead and start punching one way audio in the face. Or in more civilized words, troubleshoot one-way audio. Troubleshooting one-way audio and no audio. The process includes three steps: 1. Find where RTP streams are sent to. 2. Verify whether RTP packets are received. 3. Work through possible issues. The logic is simple,
Solved: CUBE One-Way Audio - Cisco Community
https://community.cisco.com/t5/collaboration-applications/cube-one-way-audio/td-p/4076969
ITSP (SIP Trunk) --> CUBE --> CUCM (5001 is AA) --> CUC (Customer Service 0 is a hunt group on CUCM extension number 1888) We have one way-audio and the call will disconnect after 10-15 seconds when calling to this hunt-group, the weird thing is when I do a "debug ccsip messages" the call will work fine. This is the running config on my CUBE.
Experiencing One Way Audio When Connecting via SIP
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000PLooCAG
Experiencing One Way Audio When Connecting via SIP Cause SIP (Session Initiation Protocol) allows two endpoints to establish media sessions with each other. This is an application layer signaling protocol. The main signaling functions of the protocol are as follows: – Location of an end point.
How to resolve one-way or no-way audio on VoIP calls
http://info.teledynamics.com/blog/how-to-resolve-one-way-or-no-way-audio-on-voip-calls
One of the most common challenges involves a technology called Network Address Translation (NAT), which for data networks has been a godsend, but if not configured carefully, could cause problems for voice applications. In particular, NAT is a common cause of one-way and no-way audio on VoIP calls.
Cisco Bug: CSCud60826 - One-way audio on TDM SIP GW ...
https://quickview.cloudapps.cisco.com/quickview/bug/CSCud60826
Description (partial) Symptom: PSTN -- T1 PRI --- IOS Gateway -- SIP --- CUCM --- Agent IP Phones One-way audio may be observed between a PSTN caller and an Agent IP phone connected via a SIP IOS Gateway such as ISR-G2 routers. The "tx" counter in the IP leg of "show call active voice brief" command will stop incrementing.
Cisco Bug: CSCuy85653 - One way audio via ISR 4K after ...
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuy85653
Symptom: PSTN -- PRI -- 4431 gateway -- SIP -- CUCM-- IP phone One way audios in specific SNR callflow. Call is made from PSTN to IP phone. IP phone rings but does not pick up so call is sent to the Remote Destination using same gateway. Two way audio establishes. When remote destination hangs up , call is resumed on IP phone and there is one way audio.
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