[asterisk-users] SIP RTP ports not released when channel is hung up

[Klaus Darilion]

Am 11.02.2010 11:21, schrieb Armin Schindler:
> Hello,
>
> using Asterisk 1.4.28, I encountered a problem with SIP
> RTP port allocation.
>
> I found some entries in mailinglist and bugtracker regarding
> this issue, but only old ones.
>
> My rtp.conf has
>    [general]
>    rtpstart=30000
>    rtpend=30100
>
> so 100 ports available. I know that up to 4 ports per channel can be used
> and so up to 25 channels are possible.
> But even earlier I often get the error about "No RTP ports remaining".
>
> I had a look at
>    netstat -nuap
> and it shows that a lot of ports are still assigned, even if there is no
> channel in use.
> But "sip show channels" show a lot of (unused) entries with no
> codec/Format and "Last Message" like INVITE, REGISTER, OPTIONS.

If the channels exists even after 32 seconds after BYE, and BYE was 
signaled correctly, I would file a bug report.

regards
klaus

>
> Why aren't RTP ports released when not in use?
>
> Or is there a possibility to configure this behaviour?
>
> Thanks,
> Armin
>
>