asterisk users - Sep 2008 - chan_iax2.c: No more space

Just a quick question

---cut---
[Sep 17 15:52:14] WARNING[8232] app_dial.c: Unable to create channel of type
'IAX2' (cause 34 - Circuit/channel congestion)
[Sep 17 15:52:14] WARNING[8232] chan_iax2.c: No more space
[Sep 17 15:52:14] WARNING[8232] chan_iax2.c: Unable to create call
[Sep 17 15:52:14] WARNING[8232] app_dial.c: Unable to create channel of type
'IAX2' (cause 34 - Circuit/channel congestion)
---cut---

Any idea what causes the "No more space" warning? There's a
comment
in chan_iax2.c which says "We've still got lock held if we found a
spot" but that doesn't really clue me in either.

Most of the time it works perfectly.

   Philipp Kempgen

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On 17 Sep 2008, at 14:57, Philipp Kempgen wrote:
> Just a quick question
>
> ---cut---
> [Sep 17 15:52:14] WARNING[8232] app_dial.c: Unable to create channel  
> of type 'IAX2' (cause 34 - Circuit/channel congestion)
> [Sep 17 15:52:14] WARNING[8232] chan_iax2.c: No more space
> [Sep 17 15:52:14] WARNING[8232] chan_iax2.c: Unable to create call
> [Sep 17 15:52:14] WARNING[8232] app_dial.c: Unable to create channel  
> of type 'IAX2' (cause 34 - Circuit/channel congestion)
> ---cut---
>
> Any idea what causes the "No more space" warning? There's a
comment
> in chan_iax2.c which says "We've still got lock held if we found a
> spot" but that doesn't really clue me in either.
>
> Most of the time it works perfectly.
>
In the 1.6 beta code I have to hand, it seems to mean that you have
'used' all the iax call numbers between 1 and 0x4000
in the last 60 seconds, which seems unlikely unless someone is
DOS'ing you pretty aggressively.

Could that be the case ?

Tim.