Skype for Asterisk - one way audio

peterz

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Feb 1, 2010
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#1
Hi,

We have linux box with 2 nics

1 - public
2 - private

All works like charm for SIP phones.

I installed Skype for asterisk following this tutorial http://blogs.elastix.org/en/2009/11/sky ... -asterisk/.

All works great except:

1. Skype cals our asterisk --> works great like charm
2. Extensions located in the LAN calls Skype outside.

Skype: hears and talks
Sipo phone(extension): can not hear one way audio.

Server is NOT behind nat or anything - it is just multihomed machine and skype contacts are configured as extensions.

I tried plenty of stuff, but nothing works. chan_skype is basically stock one - just user/pass changed...

Thanks :)
 

peterz

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Feb 1, 2010
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#2
Issue Solved.

In case someone needs to fix thsi in the future:

Install g.729 codec(included in your SFA license)

Disable other codes in chan_skype.com and allow onlt g729

This solves the problem.
 

adrem78

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Jun 28, 2010
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#3
Hi peterz.
Can you tell me how install g729 licence ?

When I run register digium utility, set g729 codec and
insert my skype for asterisk licence key
I get server error "invalid prefix, shoul be G729"

Thanks
 

yesmat

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Mar 16, 2009
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#4
I had the same problem. I had skype4Asterisk working perfectly for some time and it started giving one way audio after I started tinkering with it and changing CODEC configs.

What i did was adding allow=g729 in addition to the already existing allow=alaw. I guess not having g729 installed in my box has caused a confusion. So by removing the allow=g729 statement problem fixed.

Hope that helps someone.
 

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