Audio Delay on Incoming Calls with Fanvil and FusionPBX

mosdvas

New Member
Nov 20, 2025
1
0
0
39
Hi everyone,

I’m experiencing an issue with FusionPBX and Fanvil X210/X5U phones (version 2). When a user picks up an incoming call, there’s a noticeable delay (2 to 8 seconds of dead air) before the audio starts. I’ve tried numerous configuration changes, but nothing has resolved the issue.

Interestingly, a Fanvil X210 (version 1) and a Yealink T57W connected to the same PBX work perfectly fine, with no delay.

I’ve replicated this behavior across three different sites, each with distinct network configurations. Has anyone encountered this issue before or found a solution?

Any help or insights would be greatly appreciated!

Thanks in advance.