Hi Malik, When the first T1 is full, calls to the second T1 fails. Second T1 full, calls to first fails. Off peak hours I can make a call on any T1. See the logs below Is there some varial in chan_dahdi that could be limiting me to 1 T1. In the logs I don't see any SS7 call setup messages so I doubt this is coming from the other end. -- Hungup 'DAHDI/24-1' == Spawn extension (wholesale, 14734436295, 1) exited non-zero on 'SIP/MVTS2-00aa1e18' == Using SIP RTP CoS mark 5 == Using UDPTL CoS mark 5 -- Executing [14734380035 at wholesale:1] Dial("SIP/MVTS-a18060c8", "DAHDI/g1/4734380035") in new stack -- Called g1/4734380035 -- DAHDI/24-1 is proceeding passing it to SIP/MVTS-a18060c8 -- DAHDI/24-1 is ringing -- DAHDI/24-1 answered SIP/MVTS-a18060c8 == Using SIP RTP CoS mark 5 == Using UDPTL CoS mark 5 -- Executing [14734352124 at wholesale:1] Dial("SIP/MVTS-a178fd48", "DAHDI/g1/4734352124") in new stack [May 20 19:39:47] WARNING[12578]: app_dial.c:1518 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion) == Everyone is busy/congested at this time (1:0/1/0) -- Executing [14734352124 at wholesale:2] Hangup("SIP/MVTS-a178fd48", "") in new stack == Spawn extension (wholesale, 14734352124, 2) exited non-zero on 'SIP/MVTS-a178fd48' == Using SIP RTP CoS mark 5 == Using UDPTL CoS mark 5 -- Executing [14734352124 at wholesale:1] Dial("SIP/MVTS2-a22ff068", "DAHDI/g1/4734352124") in new stack [May 20 19:39:47] WARNING[12579]: app_dial.c:1518 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion) == Everyone is busy/congested at this time (1:0/1/0) -- Executing [14734352124 at wholesale:2] Hangup("SIP/MVTS2-a22ff068", "") in new stack == Spawn extension (wholesale, 14734352124, 2) exited non-zero on 'SIP/MVTS2-a22ff068' == Using SIP RTP CoS mark 5 == Using UDPTL CoS mark 5 -- Executing [14734352124 at wholesale:1] Dial("SIP/MVTS2-a155e628", "DAHDI/g1/4734352124") in new stack [May 20 19:39:48] WARNING[12580]: app_dial.c:1518 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion) == Everyone is busy/congested at this time (1:0/1/0) -- Executing [14734352124 at wholesale:2] Hangup("SIP/MVTS2-a155e628", "") in new stack == Spawn extension (wholesale, 14734352124, 2) exited non-zero on 'SIP/MVTS2-a155e628' == Using SIP RTP CoS mark 5 == Using UDPTL CoS mark 5 -- Executing [14734352124 at wholesale:1] Dial("SIP/MVTS-a170fd08", "DAHDI/g1/4734352124") in new stack [May 20 19:39:48] WARNING[12581]: app_dial.c:1518 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion) == Everyone is busy/congested at this time (1:0/1/0) -- Executing [14734352124 at wholesale:2] Hangup("SIP/MVTS-a170fd08", "") in new stack == Spawn extension (wholesale, 14734352124, 2) exited non-zero on 'SIP/MVTS-a170fd08' SCCP method indicator: 0 [ 54 06 ] -- DAHDI/13-1 is proceeding passing it to SIP/MVTS-a23f0f38 -- DAHDI/13-1 is ringing Len = 19 [ 97 f5 10 a5 01 9d 02 00 a3 01 15 75 00 0c 02 00 02 80 90 ] FSN: 117 FIB 1 BSN: 23 BIB 1 <[0] MSU [ 97 f5 10 ] Network Indicator: 2 Priority: 2 User Part: ISUP (5) [ a5 ] OPC 1-163-0 DPC 2-157-1 SLS 21 [ 01 9d 02 00 a3 01 15 ] CIC: 117 [ 75 00 ] Message Type: REL [ 0c ] --VARIABLE LENGTH PARMS[1]-- Cause Indicator: Coding Standard: 0 Location: 0 Cause Class: 1 Cause Subclass: 0 Cause: Normal call clearing (16) [ 02 80 90 ] Len = 14 [ f5 98 0b b5 00 a3 01 01 9d 02 c2 75 00 10 ] FSN: 24 FIB 1 BSN: 117 BIB 1 >[0] MSU [ f5 98 0b ] Network Indicator: 2 Priority: 3 User Part: ISUP (5) [ b5 ] OPC 2-157-1 DPC 1-163-0 SLS 194 [ 00 a3 01 01 9d 02 c2 ] CIC: 117 [ 75 00 ] Message Type: RLC [ 10 ] -- Hungup 'DAHDI/17-1' Dave George Teletone Inc. > -------- Original Message -------- > Subject: Re: [asterisk-ss7] app_dial.c:1518 dial_exec_full: Unable to > create channel of type 'DAHDI' > From: Mesbahuddin Malik <mesbah.malik at gmail.com> > Date: Fri, May 21, 2010 5:22 am > To: asterisk-ss7 at lists.digium.com > > > --------------------------------------------------------------------- > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-ss7 mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-ss7