Hey, I wrote yesterday about PRI dropping, which turned out to just be a regular reset of unused B-channels. This time there's a real issue. As noted earlier I have an ISDN-30 connection, a Digium TE-121 with VPMADT032 echo cancellation. These are my configurations files:
== /etc/zaptel.conf loadzone=dk defaultzone=dk span=1,1,0,css,hdb3,crc4 bchan=1-15 dchan=16 bchan=17-31 == == /etc/asterisk/zapata.conf [channels] switchtype=euroisdn usecallerid=yes group=1 signalling=pri_cpe context=incoming channel=>1-15 channel=>17-31 == The Asterisk console has this (repeating for every channel): [Mar 26 18:39:19] WARNING[3772]: chan_zap.c:6685 handle_init_event: Detected alarm on channel 1: Red Alarm [Mar 26 18:39:19] WARNING[3772]: chan_zap.c:1471 zt_disable_ec: Unable to disable echo cancellation on channel 1 [Mar 26 18:39:19] WARNING[3772]: chan_zap.c:6685 handle_init_event: Detected alarm on channel 2: Red Alarm [Mar 26 18:39:19] WARNING[3772]: chan_zap.c:1471 zt_disable_ec: Unable to disable echo cancellation on channel 2 ... ... [Mar 26 18:39:19] NOTICE[3771]: chan_zap.c:8486 pri_dchannel: PRI got event: Alarm (4) on Primary D-channel of span 1 [Mar 26 18:39:19] WARNING[3771]: chan_zap.c:2401 pri_find_dchan: No D-channels available! Using Primary channel 16 as D-channel anyway! [Mar 26 18:39:24] NOTICE[3771]: chan_zap.c:8486 pri_dchannel: PRI got event: No more alarm (5) on Primary D-channel of span 1 [Mar 26 18:39:24] NOTICE[3772]: chan_zap.c:6678 handle_init_event: Alarm cleared on channel 1 [Mar 26 18:39:24] NOTICE[3772]: chan_zap.c:6678 handle_init_event: Alarm cleared on channel 2 ... ... See the full output at http://sprunge.us/cdFf I enabled PRI debugging for span 1, which gives this: q921.c:709 q921_reset: q921_state now is Q921_LINK_CONNECTION_RELEASED Sending Set Asynchronous Balanced Mode Extended q921.c:150 q921_send_sabme: q921_state now is Q921_AWAITING_ESTABLISH -- Got UA from network peer Link up. q921.c:709 q921_reset: q921_state now is Q921_LINK_CONNECTION_RELEASED q921.c:664 q921_dchannel_up: q921_state now is Q921_LINK_CONNECTION_ESTABLISHED q931.c:2755 q931_restart: call 32768 on channel 1 enters state 62 (Restart) > Protocol Discriminator: Q.931 (8) len=13 > Call Ref: len= 2 (reference 0/0x0) (Originator) > Message type: RESTART (70) > [18 03 a9 83 81] > Channel ID (len= 5) [ Ext: 1 IntID: Implicit PRI Spare: 0 Exclusive > Dchan: 0 > ChanSel: Reserved > Ext: 1 Coding: 0 Number Specified Channel Type: 3 > Ext: 1 Channel: 1 ] > [79 01 80] > Restart Indentifier (len= 3) [ Ext: 1 Spare: 0 Resetting Indicated Channel > (0) ] < Protocol Discriminator: Q.931 (8) len=13 < Call Ref: len= 2 (reference 0/0x0) (Terminator) < Message type: RESTART ACKNOWLEDGE (78) < [18 03 a1 83 81] < Channel ID (len= 5) [ Ext: 1 IntID: Implicit PRI Spare: 0 Preferred Dchan: 0 < ChanSel: Reserved < Ext: 1 Coding: 0 Number Specified Channel Type: 3 < Ext: 1 Channel: 1 ] < [79 01 80] < Restart Indentifier (len= 3) [ Ext: 1 Spare: 0 Resetting Indicated Channel (0) ] -- Processing IE 24 (cs0, Channel Identification) -- Processing IE 121 (cs0, Restart Indicator) q931.c:3581 q931_receive: call 32768 on channel 1 enters state 0 (Null) q931.c:2755 q931_restart: call 32768 on channel 2 enters state 62 (Restart) > Protocol Discriminator: Q.931 (8) len=13 > Call Ref: len= 2 (reference 0/0x0) (Originator) > Message type: RESTART (70) > [18 03 a9 83 82] > Channel ID (len= 5) [ Ext: 1 IntID: Implicit PRI Spare: 0 Exclusive > Dchan: 0 > ChanSel: Reserved > Ext: 1 Coding: 0 Number Specified Channel Type: 3 > Ext: 1 Channel: 2 ] > [79 01 80] > Restart Indentifier (len= 3) [ Ext: 1 Spare: 0 Resetting Indicated Channel > (0) ] < Protocol Discriminator: Q.931 (8) len=13 < Call Ref: len= 2 (reference 0/0x0) (Terminator) < Message type: RESTART ACKNOWLEDGE (78) < [18 03 a1 83 82] < Channel ID (len= 5) [ Ext: 1 IntID: Implicit PRI Spare: 0 Preferred Dchan: 0 < ChanSel: Reserved < Ext: 1 Coding: 0 Number Specified Channel Type: 3 < Ext: 1 Channel: 2 ] < [79 01 80] < Restart Indentifier (len= 3) [ Ext: 1 Spare: 0 Resetting Indicated Channel (0) ] -- Processing IE 24 (cs0, Channel Identification) -- Processing IE 121 (cs0, Restart Indicator) Again, full output at http://sprunge.us/EcTA I even tried swapping the card with a spare TE121 I have. Exactly same error, so I don't think it's an hardware issue. I also have had two different telco guys out, both said the connection was fine, but one mentioned something about me being out of 'stroke'/sync - they're running at a 2048Mb frequency, I was some 20 below. He didn't explain too good. Any help appreciated. _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
