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Asterisk: forwarding a call without answering immediately ...
https://stackoverflow.com/questions/14158334/asterisk-forwarding-a-call-without-answering-immediately#:~:text=The%20situation%20of%20not%20hearing%20anything%20is%20usually,your%20sip.conf%20configuration%20is%20ill-configured%2C%20it%20won%27t%20work.
Call forwarding, no audio, help - Asterisk SIP - Asterisk ...
https://community.asterisk.org/t/call-forwarding-no-audio-help/73102
Hello, when I forward a call I have no audio (2-way). The problem seams to be the same as: but I can’t find a network problem. When I answer the call before (using emty announcement), the forwarding to mobile device works. That can be a perfect fix, but I don’t want to answer the call before the forwarding destination answer the call. All ports SIP ports are …
No audio on Asterisk SIP call - Stack Overflow
https://stackoverflow.com/questions/5554837/no-audio-on-asterisk-sip-call
I almost managed to init a 2 sided call (click to call): 1st to my office and the 2nd to my cell using Michal Niklas answer (thanks Michal) on Asterisk click to call. The major ISSUE is that the 2 call participants can not hear one each other, I used from-internal context for both of them.
Call redirection: no audio depending on target number ...
https://community.asterisk.org/t/call-redirection-no-audio-depending-on-target-number/87940
In certain cases, call forwarding does not work: the call is signalled as successfully established, but no audio is transferred. This depends on to which (public) number number the call is forwarded. I did a packet trace, here you can see the (quite different) course of actions between the Asterisk (0.0.0.0) and the public telephony gateway of Telekom Germany:
Call establishes, no audio, but only when forwarding to ...
https://community.freepbx.org/t/call-establishes-no-audio-but-only-when-forwarding-to-external-number/40040
Call establishes, no audio, but only when forwarding to external number. tlarrea (Timothy Larrea) March 13, 2017, 4:12am #1. FreePBX: 13.0.190.19. Asterisk: 13.11.2. Server is running as a VM on ESXi 5.5 host. We have a problem when attempted to forward inbound external calls back out to an external number such as a mobile.
No Sound on External SIP in Asterisk|FreePBX
https://www.sysfix.co.uk/Blog/No-sound-on-external-sip-asterisk.html
No sound with SIP | No Sound With Asterisk| No Sound With NAT. To correctly troubleshoot your issue, make sure that the following steps are taken. On your router, open up the following ports and forward them to your asterisk box. Your asterisk box may be in the form of (FreePBX, AsteriskNOW, or TrixBox)- They all use the same format
Call Forwarding Connection OK but No Audio - General Help ...
https://community.freepbx.org/t/call-forwarding-connection-ok-but-no-audio/4646
I have exactly the same problem here - no audio on call forward to mobile/landline phone. The only solution I have found is to tick the ‘confirm calls’ in the follow me settings for the extension with the call forwarding. Then the audio is connected only when I press 1 on the mobile after the call is connected.
No Audio on external call forward? - FreePBX - FreePBX ...
https://community.freepbx.org/t/no-audio-on-external-call-forward/55230
So there is something that is not handling NAT/audio right if you don’t send audio immediately. We would need to see a complete debug of a call that is having this problem. So turn off the announcement to replicate the issue and make a test call while having either: asterisk -r sip set debug on OR pjsip set logger on depending on the type of trunk you are using. Copy the …
Asterisk Call Forwarding – IT Blog
https://ixnfo.com/en/asterisk-call-forwarding.html
on Asterisk Call Forwarding. Let me give you an example of setting call forwarding in Asterisk. For example, on Grandstream IP phones, you can enable redirection by the functions of the phone itself, but if the phone is far away and there is no way to do it on it, but it is possible to log in using the SIP number of this phone, then to activate call forwarding, you can make a …
No Audio or One-audio - SIP Incoming Call Forwarding to ...
https://support.yeastar.com/hc/en-us/articles/360038834294-No-Audio-or-One-audio-SIP-Incoming-Call-Forwarding-to-External-Number-via-SIP-trunk
Without the RTP(CN), it is not able to activate the NAT session which leads to the no voice issue in this case. Solutions. Choose either one according to your environment: 1. Enable the RTP Keep-alive option for the SIP trunk used to forward the call. Note that the PBX firmware should be X.14.0.127. 2. If you don't want to upgrade the PBX firmware.
Calls forwarded outbound via SIP trunks connect but no audio
https://www.tek-tips.com/viewthread.cfm?qid=1767037
Forwarding a call coming into the SIP trunks and then back out the SIP trunks results in no audio. The call rings on the far-end, and can be answered, but there's no audio in either direction. A call inbound via SIP trunks to a SIP extension works just fine. (Using a softphone on my laptop registered via VPN during testing)
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