Mr JM wrote:
[color=blue]
> JM
> "Stephen Lewis" <stephen@sock.org.uk> wrote in message
> news:47e2429f$0$632$5a6aecb4@news.aaisp.net.uk...[color=green]
>> Mr JM wrote:[color=darkred]
>>> When I put my phone on mute, I get disconnected aftrer 2 min.... [...][/color]
>>
>> Does your SIP UA give you the option of disabling silence suppression?
>>
>> The symptom you describe suggests that your phone is 'pausing' the RTP
>> media stream when you put it on mute; it's quite likely that if you
>> can persuade your phone to continue the media stream when it's muted,
>> Voipfone won't kill the call.
>>
>> Stephen[/color]
>[/color]
[color=blue]
> Thanks for the idea. I just checked:
>
> The phone is a SNOM 300, and silence suppression is set to off.
>[/color]

<Sigh> Top posting corrected - again!

Silence suppression should be on. From the manual (The book that tells
you how to use it with completely messing it up):

Description: To save bandwidth in the case of silence, select “on” to
stop silent RTP audio streams for as long as the silence lasts. When
silence suppression is on, comfort noise (CNG/VAD) will be generated
locally at the other end of the call so that the other party will not
mistakenly believe that the call has been terminated.