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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#:~:text=Most%20likely%20the%20network%20that%20the%20phone%20inside,the%20ASA%20this%20is%20most%20likely%20your%20issue.
One way audio ASA - Cisco Community
https://community.cisco.com/t5/network-security/one-way-audio-asa/td-p/1236803
Using TSHark, capture the SIP, RTP and ICMP traffic into a handful of ring buffer files. When the problem occurs, see if the audio streams are present on the the other side of the ASA. If not, you will want to keep moving toward the other end. Additionally, you might want to see if your ASA is logging any dropped packets from the other end.
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
A one-way audio call is when you have a call between 2 phones (internal-internal or internal-external), and one of them cannot hear the other end. ... (RTP Packets) is a point-to-point communication between the phones, the audio does NOT go through CUCM, ... (open a TAC case with the ASA security team), or leave that disabled.
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
SIP protocol is opened through the ASA, and the phone is able to register. The phone is able to dial an internal extension on the PBX which reads the extension number -- the audio is received by the phone fine. We are NOT able to SEND audio from the phone to the PBX however, and appears to be blocked by the ASA.
How to solve VoIP one way audio- step by step.
https://www.voipmechanic.com/voip-one-way-audio.htm
Solve One Way Audio-Step by Step. One way audio where one side or one party can hear the other, but not reverse, is typically indicative of something stopping either the outbound or inbound audio from reaching the receiving party. One way audio can be caused by network issues; NAT (Network Address Translation) issues or firewalls, so finding the cause …
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.
one-way VoIP audio troubleshooting : networking
https://www.reddit.com/r/networking/comments/3b9lu5/oneway_voip_audio_troubleshooting/
From what I've read, one-way audio happens when RTP streams aren't flowing through the NAT traversal process correctly, and maybe I'm understanding IPSEC incorrectly, but I always thought when the tunnel was created, all traffic flowing between sites was encapsulated and decapsulated in a way that no NAT traversal happens when going from a 192 ...
Teleworker - One way audio - Mitel Networks solutions ...
https://www.tek-tips.com/viewthread.cfm?qid=1565653
We control both the Outside/DMZ access and the DMZ/Inside access through our industrial firewall (a Cisco ASA). Now I feel I can sleep at night. Sure enough we had one-way audio for a while, but we got it straightened out. The trick is that there must be a path for Inside IP phones (called streaming devices in the docs) to talk to the TW server ...
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: One way audio on SIP calls Cisco ASA 5510 ...
https://www.experts-exchange.com/questions/24076417/One-way-audio-on-SIP-calls-Cisco-ASA-5510-transparent-firewall.html
One way audio on SIP calls Cisco ASA 5510 transparent firewall. ntssupport asked on 1/22/2009. Cisco. ... Before I put the firewall in place I had no problems whatsoever passing SIP traffic through our ACL to my Linksys 942 IP phones from the Metaswitch, All calls worked fine. I did not make any changes at all to our ACL on the router at the ...
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