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Issue with 3CX External Extensions (One Way Audio) | …
https://www.3cx.com/community/threads/issue-with-3cx-external-extensions-one-way-audio.20869/
Issue with 3CX External Extensions (One Way Audio) Thread starter jzollo; Start date Jun 27, 2011; Status Not open for further replies. jzollo. Joined Mar 25, 2011 Messages 10 Reaction score 0. Jun 27, 2011 #1 Hello All, I'm having a serious issue with one of our clients. Previously I was able to resolve this by selecting "PBX Delivers Audio ...
3CX Knowledge Base - Calls have one-way audio issues or no ...
https://help.3cx.com/kb/en-us/50-calling/135-calls-have-one-way-audio-issues-or-no-audio-what-can-i-do
Each extension with a remote STUN phone has the option “PBX Delivers Audio” ticked, On the remote site, each phone should have a static local IP address. Then in the remote site router, each extension port defined above should be mapped to the hardphone IP address associated. Phones should be rebooted/reprovisioned to take new settings account.
Solved Yet another one way audio post ... - 3CX Forums
https://www.3cx.com/community/threads/yet-another-one-way-audio-post-outbound-sip-trunk-calls-called-party-can-not-hear.62013/
One to one NAT between our external IP and the internal IP The one-to-one nat for the PBX is on a different IP address than our main office NAT. We have a /29 address range with Comcast. The WAN interface is the first useable address in the /29 (.233) range, the 3CX net is the second (.234) and the default gateway is the last (.238)
Classic one-way audio issue | 3CX Forums
https://www.3cx.com/community/threads/classic-one-way-audio-issue.17749/
The STUN server is stun.3cx.com:3478, for the record. Registering and ringing in both ways is working just fine, but we're still having one-way audio. The calling party hears us, but we do not hear the calling party... so the upload RTP stream isn't getting to the phone. Thinking it was a firewall issue I took one of the phones to my home ...
3CX external incoming calls no sound - VoIP Forum - Spiceworks
https://community.spiceworks.com/topic/2175148-3cx-external-incoming-calls-no-sound
For technical information, 3CX server is installed on a Hyper-V VM running Windows 2012 on separate VLAN, and voip traffic is routed and controlled by WatchGuard UTM. 3CX firewall test gives me all green 'done'. Connection between 3CX server and our external SIP Provider is routed through one of internet connections that we have here.
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 will require …
One way audio on remote location. Any advice? : 3CX
https://www.reddit.com/r/3CX/comments/8jy6zg/one_way_audio_on_remote_location_any_advice/
Hey all. I've been trying to knock out an issue at our remote office where calls start fine, but in the middle of them they lose audio in one direction. Specifically, the external caller can't hear us, but we can hear them. This office does have multiple remote softphone extensions, no desk phones. We use Version 15.
Occasional 1 way audio - remote users : 3CX
https://www.reddit.com/r/3CX/comments/fxxaxd/occasional_1_way_audio_remote_users/
My 3CX setup is locally hosted with remote users (non-VPN). This was never a problem when users were on site, and doesn't happen with all users. We're having an issue where occasionally my clients cannot hear on phone calls. We have comcast SIP lines for the back end, and our internet connect is 500 up/down. 80,443,5090, 5060-5061, 9000-10999 ...
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. A no-way / no audio call is when you have a call between 2 phones (internal-internal or internal-external), and none of them can hear each other.
No audio on external calls
http://forum.yealink.com/forum/showthread.php?tid=799
When an external call comes in there is no audio both ways: 1. The phone rings 2. The user is able to answer the call and the call is connected 3. The user is unable to hear the caller and the caller doesn’t here the user (No audio is received in both directions) 4. If the user puts the call on hold and then resumes the call two way audio is restored. 5.
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