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

[Philipp von Klitzing]

Hi!

> My rtp.conf has
>   [general]
>   rtpstart=30000
>   rtpend=30100

My understanding is that rtpstart should be an odd number, and rtpend an 
even one.

> 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".
> 
> Why aren't RTP ports released when not in use?

Just to confirm, I have seen that as well at least on Asterisk 1.2, most 
probably also 1.4.

Philipp