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Solved: Cisco ASA SIP - one way audio on external phone ...
https://www.experts-exchange.com/questions/27020702/Cisco-ASA-SIP-one-way-audio-on-external-phone.html
2011-5-5 · I have a Cisco ASA 5505 with an Asterisk server on the inside of the network (most phone on the LAN side as well) using an Internet-based SIP Trunk provider. All works well. We are trying to connect an EXTERNAL phone (on the Internet) to the Asterisk server now as well. SIP protocol is opened through the ASA, and the phone is able to register.
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
2017-1-9 · This example shows a one-way audio, the call flow is SIP phone calls an SCCP phone . SIP phone relevant info is marked in blue. SCCP phone relevant info is marked in orange . Since CUCM sends the correct IP address and port to each phone, this is not a signaling / CUCM issue.
One-Way audio on Inbound Calls - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/one-way-audio-on-inbound-calls/td-p/4407561
· Greetings! I am having problems with one way RTP streams on inbound calls. My setup is: ITSP->CUBE<- SIP TRUNK ->CUCM->UCCX . This setup was working before and all of a sudden when I try calling from my mobile phone, the signaling works, the call gets connected but I get no audio whatsoever meanwhile the other party can hear me.
How to punch SIP One Way Audio in the face - UCPros
https://ucpros.net/sip-one-way-audio/
2018-7-29 · The problem can be one-way audio or no audio at all when both RTP streams can’t find their way. Each phone will listen and send RTP on different port numbers, as published in the SDP. Now that you understand the basics of how RTP works, we can go ahead and start punching one way audio in the face. Or in more civilized words, troubleshoot 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
2013-1-28 · 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:
Solved: One-Way voice in a call over VPN - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/one-way-voice-in-a-call-over-vpn/td-p/2232262
2013-6-7 · One-Way voice in a call over VPN. We have a problem with the calls when they come from a user connected through VPN. The topology is the next: VPN User->ASA->ROUTER->User in office. Both users are in inside interface and the command " same-security-traffic permit intra-interface" is configured so the traffic is allowed.
Troubleshooting One Way Voice Issues - Cisco
https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/5219-fix-1way-voice.html
2008-10-13 · When a phone call is established from an IP station that is placed behind a VPN 3002 Hardware Client, only one of the parties receives audio (one-way communication). Solutions. The causes of one-way audio in IP Telephony can be varied, but the root of the problem usually involves IP routing issues.
How to solve VoIP one way audio- step by step.
https://www.voipmechanic.com/voip-one-way-audio.htm
2022-2-5 · The first step in one way audio troubleshooting is to simplyfy the connections. This allows you to identify the actual cause of the VoIP one-way audio. Do the following: Connect the VoIP ATA, IP Phone, or PC with softphone directly to the modem device. Make sure you get registered and obtain a valid IP address.
site to site vpn - One way audio on SIP phone on one call ...
https://serverfault.com/questions/15116/one-way-audio-on-sip-phone-on-one-call-direction-where-to-look-next
2021-12-2 · If it was a codec issue, you'd have no audio, because the phones would be unable to send audio between each other. One way audio is almost always caused by RTP not passing through. Per DLux's statement, turning off SIP ALG or SIP Fixup or SIP Transformation - different routers use different terms for the same thing - is a good first step.
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
2022-2-5 · 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.
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