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One Way Audio on SCN line

One Way Audio on SCN line

One Way Audio on SCN line

(OP)
I have a customer that has just started having calls with one way audio over their SCN line. They are running 2.1.24 on their 412 control units with dual 20 VCM modules at each location. The problem starts about five or so minutes into the call. Nothing has changed on their configuration and this system has been working for almost 2 years with no problems. I have replaced each VCM module with no luck. I know this is probably a network issue. Has anyone heard of this ?

RE: One Way Audio on SCN line

two years, but not with version 2.1 (24).
Really bad software version.
Go to 2.1 (27) before you search for problems.


Greets Peter

RE: One Way Audio on SCN line

What is the connection between sites ?

FIRST , upgrade to 2.1.27
Second , check the voip line at both sites match
untick faststart , use g729 acelp

Third , check the dscp values in the gatekeeper form
Fourth , if you are using services is iphc and multilink ticked.

Just a few to look at ...


 

RE: One Way Audio on SCN line

Is there a firewall between the two systems ?

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