Hello, I have a busy problem with Asterisk when I try to transfer a call from PRI directly to IVR. This problem appear sometime after 2 hours or 2 minutes. The log file contain : Unable to create channel of type 'Zap' (cause 34 - Circuit/channel congestion) When this problem appear I must restart Asterisk to solve it. Another thing, I don't know why the alarm is set to NOP on SPAN 2 ? Maybe it comes from here ? Any ideas ? The configuration : PRI (France Telecom) 15 channels <====> (SPAN1) Asterisk (SPAN2) <=====> IVR Server : - Dell power edge 1800SC - 2 Ethernet cards (LAN + VoIP LAN) - Digium card : TE 405P - Linux Mandriva LE 2005 (10.2) : Linux ASTERISK 2.6.11-12mdksmp #1 SMP i686 Intel(R) Xeon(TM) CPU 3.00GHz unknown GNU/Linux - Asterisk 1.2.4 - Zaptel 1.2.3 - Libpri 1.2.2 ===========================================ASTERISK*CLI> zap show status Description Alarms IRQ bpviol CRC4 T4XXP (PCI) Card 0 Span 1 OK 0 0 0 T4XXP (PCI) Card 0 Span 2 NOP 0 0 0 T4XXP (PCI) Card 0 Span 3 NOP 0 0 0 T4XXP (PCI) Card 0 Span 4 RED/NOP 0 0 0 ===========================================zaptel.conf span=1,1,0,ccs,hdb3 span=2,1,0,ccs,hdb3,crc4,yellow span=3,1,0,ccs,hdb3,crc4,yellow span=4,1,0,ccs,hdb3,crc4,yellow bchan = 1-15, 17-31 dchan = 16 bchan = 32-46,48-62 dchan = 47 bchan = 63-77,79-93 dchan = 78 bchan = 94-108,110-124 dchan = 109 loadzone = fr defaultzone = fr =========================================== ===========================================zapata.conf [channels] switchtype=euroisdn pridialplan=national signalling=pri_cpe usecallerid=yes hidecallerid=yes usecallingpres=no callwaiting=yes callwaitingcallerid=yes threewaycalling=yes transfer=yes cancallforward=yes echocancel=yes echocancelwhenbridged=yes echotraining=yes rxgain=0.0 txgain=-6.0 group=1 callgroup=1 pickupgroup=1 immediate=no callprogress=no busydetect=no callerid=asreceived group=1 context=from-pstn signalling=pri_cpe channel => 1-15 ;,17-31 => only 15 first channels on PRI group=2 context=from-ivr signalling=pri_net channel => 32-46,48-62 group=3 context=from-ivr-bis signalling=pri_net channel => 63-77,79-93 group=4 signalling=pri_net channel => 94-108,110-124 =========================================== Regards Jerome