Author Topic: Zentyal VOIP, no sound  (Read 1976 times)

ohdude

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Zentyal VOIP, no sound
« on: May 12, 2013, 03:42:19 pm »
Hello everyone,

I voip system zentyal to test but when I call, for example the emulator on my mobile, I get no sound of my voice




I currently have telephone 4001 and 4003
Phone 4003 is my android phone

This is 4001,
3cxphone software, on my android I have the android version :)

When I so I get from one to the other call no sound what about the connections should be sent :/

 :o

Does anyone have any idea what I'm doing wrong?

Marcus

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Re: Zentyal VOIP, no sound
« Reply #1 on: May 12, 2013, 04:27:27 pm »
Hello ohdude,

** The following is based on my knowledge of Asterisk - not on Zentyal VoIP module - Still, it should basically be the same **

It sounds like your firewall is blocking RTP (no pun intended).

Try allowing port range 10000 - 20000 on your firewall.

Explanations
Strictly speaking, this shouldn't be required, but different adapters and such use different ranges. Generally port 10000 is where they start (these are for RTP for the actual voice packets), and you usually don't need more than a handful, but providers often tell you to forward the whole lot to make sure it works.

i.e.
The defaults for the PAP2T are as follows:

SIP Ports - UDP Ports 5060-5061
RTP Ports - UDP Ports 16384-16482

The 10000-20000 number just "covers all the bases".

Please share your feedbacks and results with the community.

Best,

Marcus

half_life

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Re: Zentyal VOIP, no sound
« Reply #2 on: May 12, 2013, 06:18:10 pm »
I believe the demonstration extensions are initially enabled in a stock install.  You might try calling extension 600 for an echo test.   It will repeat back to you whatever you say.  This is useful to test for one leg calling,jitter, and other audio related issues.