[asterisk-users] pmp_l1_check=no with zaphfc (Bristuff)

[Olivier MONNET]

Hi,
I’m using Bristuff for more than a year and half now, and I am stuck  
with the same problem since asterisk 1.2.
When using a card from Junghans, QuadBri or OctoBri everything is ok, 
(driver QOZAP) but with a one port generic card (driver ZAPHFC) when  
the channel go to sleep, it cannot dialout any more. The only way to  
get it back is an incoming call, and it work until the channel go to  
sleep .
Here in France, I can ask the ISDN operator (France Telecom) to keep  
the channels up, but it does not work everywehere and generally the  
technician on the phone don’t known what I’m talking about.
With asterisk 1.0, the driver is keeping the channel up, so it works  
fine.
For my new installations, I have switched to mISDN,
With mISDN, there is the option: pmp_l1_check=no which start the call  
even if the channel is down.
Dialout work fine but there is some echo on many calls.
I have never experienced echo problem with Bristuff.
It is not possible to use a 4 ports card for small PXBs  (1 bri) for  
cost reasons.
I’ve tried to contact people at junghanns.net with no answers, I also  
tried to post on this list last year without finding any solutions.

Does anyone ever experienced this and found a solution?