Andy Brezinsky wrote:
Hey all. We have a DS3 circuit with GBLX split off into 7 systems
with a 4 port sangoma card (A104D) in the first 2 systems, and digium
T410P cards in the other 5. GBLX numbers their spans from 0 to 3
instead of 1-4 and we have a NFAS configuration with the d-channel on
chan 96. All of our systems are running 1.0.7 for stability reasons
(and no good time for maintaince, the entire platform is used most of
the day) but if an upgrade will help us, we'll schedule it soon.
We've recently been experiencing people not being able to get in. We
have a hunt group tied in over our 7 trunks which will roll them if a
trunk is busy or out of order. It seems that call comes into this
termination system (see trace below), we fire back a Cause: Channel
unacceptable (6) event to GBLX and they try the next system, even if
this system isn't busy. Because of this, calls can eventually try all
7 systems, get rejected, and then users get busy messages even though
we're not at total capacity yet. Below I've attached the entire pri
debug of one of these events happening. Can anyone shed some light on
where we should be looking to fix this stuff?
milwia1-terma-2*CLI pri debug span 4
Enabled debugging on span 4
Protocol Discriminator: Q.931 (8) len=47
Call Ref: len= 2 (reference 15996/0x3E7C) (Originator)
Message type: SETUP (5)
[04 03 80 90 a2]
Bearer Capability (len= 5) [ Ext: 1 Q.931 Std: 0 Info transfer
capability: Speech (0)
Ext: 1 Trans mode/rate: 64kbps,
circuit-mode (16)
Ext: 1 User information layer 1: u-Law
(34)
[18 04 e9 80 83 8e]
Channel ID (len= 6) [ Ext: 1 IntID: Explicit, PRI Spare: 0,
Exclusive Dchan: 0
ChanSel: Reserved
Ext: 1 DS1 Identifier: 0
Ext: 1 Coding: 0 Number Specified Channel
Type: 3
Ext: 1 Channel: 14 ]
[1e 02 81 83]
Progress Indicator (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard
(0) 0: 0 Location: Private network serving the local user (1)
Ext: 1 Progress Description: Calling
equipment is non-ISDN. (3) ]
[6c 0c 21 81 33 32 33 38 30 31 37 39 37 30]
Calling Number (len=14) [ Ext: 0 TON: National Number (2) NPI:
ISDN/Telephony Numbering Plan (E.164/E.163) (1)
Presentation: Presentation permitted, user
number passed network screening (1) '323801' ]
[70 0b a1 38 30 30 39 37 38 37 32 37 39]
Called Number (len=13) [ Ext: 1 TON: National Number (2) NPI:
ISDN/Telephony Numbering Plan (E.164/E.163) (1) '800978' ]
-- Making new call for cr 15996
-- Processing Q.931 Call Setup
-- Processing IE 4 (cs0, Bearer Capability)
-- Processing IE 24 (cs0, Channel Identification)
-- Processing IE 30 (cs0, Progress Indicator)
-- Processing IE 108 (cs0, Calling Party Number)
-- Processing IE 112 (cs0, Called Party Number)
Protocol Discriminator: Q.931 (8) len=10
Call Ref: len= 2 (reference 48764/0xBE7C) (Terminator)
Message type: CALL PROCEEDING (2)
[18 03 a9 83 8e]
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: 14 ]
-- Accepting voice call from '323801' to '800978' on
channel 0/14, span 4
-- Executing SetVar(Zap/14-1, SERVER_ID=2) in new stack
-- Executing Answer(Zap/14-1, ) in new stack
Protocol Discriminator: Q.931 (8) len=14
Call Ref: len= 2 (reference 48764/0xBE7C) (Terminator)
Message type: CONNECT (7)
[18 03 a9 83 8e]
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: 14 ]
[1e 02 81 82]
Progress Indicator (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard
(0) 0: 0 Location: Private network serving the local user (1)
Ext: 1 Progress Description: Called
equipment is non-ISDN. (2) ]
-- Executing AGI(Zap/14-1, incoming_call.pl) in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/incoming_call.pl
Protocol Discriminator: Q.931 (8) len=9
Call Ref: len= 2 (reference 15996/0x3E7C) (Originator)
Message type: RELEASE (77)
[08 02 83 86]
Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) 0: 0
Location: Transit network (3)
Ext: 1 Cause: Channel unacceptable (6), class =
Normal Event (0) ]
-- Processing IE 8 (cs0, Cause)
-- Channel 0/14, span 4 got hangup
Protocol Discriminator: Q.931 (8) len=13
Call Ref: len= 2 (reference 15996/0x3E7C) (Originator)
Message type: STATUS (125)
[08 03 83 e5 07]
Cause (len= 5) [ Ext: 1 Coding: CCITT (ITU) standard (0) 0: 0
Location: Transit network (3)
Ext: 1
