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[brycejlowe at gmail.com]

Hello,
 
I am trying to diagnose an intermittent error when a call comes in over our PRI lines.
 
The problem appears random, however I have  feeling it has something to do with the call volume, as the frequency increases with more calls on the system.
 
I am not an expert when it comes to reading the PRI Span Debug statements but here is a call that had a problem and I bolded, italicized, and underlined the part of the debug statement that looks odd (listed under PRI Debug Output (failed call)).


Any help is appreciated.


Thanks,
Bryce
 
Version(s):
 
Asterisk 11.8.1, installed from the Digium YUM Repositories
DAHDI Version: 2.9.0
Digium Card: Wildcard TE235 (VPMOCT064)
OS: CentOS 6.5
 
My Observations:
 
When I have the problem, the only way I see that Asterisk received a signal on my PRI lines was through the pri debug statements, I don’t see anything being hit in the dialplan (for instance the NoOp at the start of my sub-dial-cudatel-extension sub context).  Is there another tool I should be using to debug this issue?
 
PRI Debug Output (failed call):
 
PRI Span: 1
PRI Span: 1 < Protocol Discriminator: Q.931 (  len=73
PRI Span: 1 < TEI=0 Call Ref: len= 2 (reference 23832/0x5D18) (Sent from originator)
PRI Span: 1 < Message Type: SETUP (5)
PRI Span: 1 < [04 03 80 90 a2]
PRI Span: 1 < Bearer Capability (len= 5) [ Ext: 1  Coding-Std: 0  Info transfer capability: Speech (0)
PRI Span: 1 <                              Ext: 1  Trans mode/rate: 64kbps, circuit-mode (16)
PRI Span: 1 <                                User information layer 1: u-Law (34)
PRI Span: 1 < [18 03 a1 83 81]
PRI Span: 1 < Channel ID (len= 5) [ Ext: 1  IntID: Implicit  Other(PRI)  Spare: 0  Preferred  Dchan: 0
PRI Span: 1 <                       ChanSel: As indicated in following octets
PRI Span: 1 <                       Ext: 1  Coding: 0  Number Specified  Channel Type: 3
PRI Span: 1 <                       Ext: 1  Channel: 1 Type: CPE]
PRI Span: 1 < [1c 1d 9f 8b 01 00 a1 17 02 01 01 02 01 00 80 0f 4f 4d 41 58 20 43 4f 52 50 20 4e 20 47 53 4d]
PRI Span: 1 < Facility (len=31, codeset=0) [ 0x9F, 0x8B, 0x01, 0x00, 0xA1, 0x17, 0x02, 0x01, 0x01, 0x02, 0x01, 0x00, 0x80, 0x0F, '<source_caller_name>' ]
PRI Span: 1 < [6c 0c 21 83 32 35 33 33 38 30 35 35 39 31]
PRI Span: 1 < Calling Party Number (len=14) [ Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
PRI Span: 1 <                                 Presentation: Presentation allowed, Network provided (3)  '<calling_caller_id>' ]
PRI Span: 1 < [70 0b a1 32 35 33 38 37 32 32 33 30 30]
PRI Span: 1 < Called Party Number (len=13) [ Ext: 1  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)  '<dest_number>' ]
PRI Span: 1 -- Making new call for cref 23832
PRI Span: 1 Received message for call 0x7f7a900012f0 on link 0x1a3cf70 TEI/SAPI 0/0
PRI Span: 1 -- Processing Q.931 Call Setup
PRI Span: 1 -- Processing IE 4 (cs0, Bearer Capability)
PRI Span: 1 -- Processing IE 24 (cs0, Channel ID)
PRI Span: 1 -- Processing IE 28 (cs0, Facility)
PRI Span: 1 -- Processing IE 108 (cs0, Calling Party Number)
PRI Span: 1 -- Processing IE 112 (cs0, Called Party Number)
PRI Span: 1 -- Delayed processing IE 28 (cs0, Facility)
PRI Span: 1 ASN.1 dump
PRI Span: 1   Context Specific [11 0x0B] <8B> Len:1 <01>
PRI Span: 1     <00> - "~"
PRI Span: 1   Context Specific/C [1 0x01] <A1> Len:23 <17>
PRI Span: 1     Integer(2 0x02) <02> Len:1 <01>
PRI Span: 1       <01> - "~"
PRI Span: 1     Integer(2 0x02) <02> Len:1 <01>
PRI Span: 1       <00> - "~"
PRI Span: 1     Context Specific [0 0x00] <80> Len:15 <0F>
PRI Span: 1       <4F 4D 41 58 20 43 4F 52-50 20 4E 20 47 53 4D> - "<source_caller_name>"
PRI Span: 1 ASN.1 end
PRI Span: 1   interpretation Context Specific [11 0x0B] = 0 0x0000
PRI Span: 1 INVOKE Component Context Specific/C [1 0x01]
PRI Span: 1   invokeId Integer(2 0x02) = 1 0x0001
PRI Span: 1   operationValue Integer(2 0x02) = 0 0x0000
PRI Span: 1   operationValue = ROSE_QSIG_CallingName
PRI Span: 1   callingName Name
PRI Span: 1   namePresentationAllowedSimple Context Specific [0 0x00] =
PRI Span: 1     <4F 4D 41 58 20 43 4F 52-50 20 4E 20 47 53 4D> - "<source_caller_name>"
PRI Span: 1 q931.c:8646 post_handle_q931_message: Call 23832 enters state 6 (Call Present).  Hold state: Idle
Span 1: Processing event PRI_EVENT_RING(5)
PRI Span: 1 q931.c:7135 q931_hangup: Hangup other cref:23832
PRI Span: 1 q931.c:6892 __q931_hangup: ourstate Call Present, peerstate Call Initiated, hold-state Idle
PRI Span: 1 q931.c:6081 q931_disconnect: Call 23832 enters state 11 (Disconnect Request).  Hold state: Idle
PRI Span: 1
PRI Span: 1 < Protocol Discriminator: Q.931 (  len=73
PRI Span: 1 < TEI=0 Call Ref: len= 2 (reference 23832/0x5D18) (Sent from originator)
PRI Span: 1 < Message Type: SETUP (5)
PRI Span: 1 < [04 03 80 90 a2]
PRI Span: 1 < Bearer Capability (len= 5) [ Ext: 1  Coding-Std: 0  Info transfer capability: Speech (0)
PRI Span: 1 <                              Ext: 1  Trans mode/rate: 64kbps, circuit-mode (16)
PRI Span: 1 <                                User information layer 1: u-Law (34)
PRI Span: 1 < [18 03 a1 83 81]
PRI Span: 1 < Channel ID (len= 5) [ Ext: 1  IntID: Implicit  Other(PRI)  Spare: 0  Preferred  Dchan: 0
PRI Span: 1 <                       ChanSel: As indicated in following octets
PRI Span: 1 <                       Ext: 1  Coding: 0  Number Specified  Channel Type: 3
PRI Span: 1 <                       Ext: 1  Channel: 1 Type: CPE]
PRI Span: 1 < [1c 1d 9f 8b 01 00 a1 17 02 01 01 02 01 00 80 0f 4f 4d 41 58 20 43 4f 52 50 20 4e 20 47 53 4d]
PRI Span: 1 < Facility (len=31, codeset=0) [ 0x9F, 0x8B, 0x01, 0x00, 0xA1, 0x17, 0x02, 0x01, 0x01, 0x02, 0x01, 0x00, 0x80, 0x0F, '<source_caller_name>' ]
PRI Span: 1 < [6c 0c 21 83 32 35 33 33 38 30 35 35 39 31]
PRI Span: 1 < Calling Party Number (len=14) [ Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
PRI Span: 1 <                                 Presentation: Presentation allowed, Network provided (3)  '<calling_caller_id>' ]
PRI Span: 1 < [70 0b a1 32 35 33 38 37 32 32 33 30 30]
PRI Span: 1 < Called Party Number (len=13) [ Ext: 1  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)  '<dest_number>' ]
PRI Span: 1 Received message for call 0x7f7a900012f0 on link 0x1a3cf70 TEI/SAPI 0/0
PRI Span: 1 -- Processing Q.931 Call Setup
PRI Span: 1 -- Processing IE 4 (cs0, Bearer Capability)
PRI Span: 1 -- Processing IE 24 (cs0, Channel ID)
PRI Span: 1 -- Processing IE 28 (cs0, Facility)
PRI Span: 1 -- Processing IE 108 (cs0, Calling Party Number)
PRI Span: 1 -- Processing IE 112 (cs0, Called Party Number)
PRI Span: 1 -- Delayed processing IE 28 (cs0, Facility)
PRI Span: 1 ASN.1 dump
PRI Span: 1   Context Specific [11 0x0B] <8B> Len:1 <01>
PRI Span: 1     <00> - "~"
PRI Span: 1   Context Specific/C [1 0x01] <A1> Len:23 <17>
PRI Span: 1     Integer(2 0x02) <02> Len:1 <01>
PRI Span: 1       <01> - "~"
PRI Span: 1     Integer(2 0x02) <02> Len:1 <01>
PRI Span: 1       <00> - "~"
PRI Span: 1     Context Specific [0 0x00] <80> Len:15 <0F>
PRI Span: 1       <4F 4D 41 58 20 43 4F 52-50 20 4E 20 47 53 4D> - "<source_caller_name>"
PRI Span: 1 ASN.1 end
PRI Span: 1   interpretation Context Specific [11 0x0B] = 0 0x0000
PRI Span: 1 INVOKE Component Context Specific/C [1 0x01]
PRI Span: 1   invokeId Integer(2 0x02) = 1 0x0001
PRI Span: 1   operationValue Integer(2 0x02) = 0 0x0000
PRI Span: 1   operationValue = ROSE_QSIG_CallingName
PRI Span: 1   callingName Name
PRI Span: 1   namePresentationAllowedSimple Context Specific [0 0x00] =
PRI Span: 1     <4F 4D 41 58 20 43 4F 52-50 20 4E 20 47 53 4D> - "<source_caller_name>"
PRI Span: 1
PRI Span: 1 < Protocol Discriminator: Q.931 (  len=9
PRI Span: 1 < TEI=0 Call Ref: len= 2 (reference 23832/0x5D18) (Sent from originator)
PRI Span: 1 < Message Type: RELEASE COMPLETE (90)
PRI Span: 1 < [08 02 82 92]
PRI Span: 1 < Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  Spare: 0  Location: Public network serving the local user (2)
PRI Span: 1 <                  Ext: 1  Cause: No user responding (1, class = Normal Event (1) ]
PRI Span: 1 Received message for call 0x7f7a900012f0 on link 0x1a3cf70 TEI/SAPI 0/0
PRI Span: 1 -- Processing IE 8 (cs0, Cause)
PRI Span: 1 q931.c:8944 post_handle_q931_message: Call 23832 enters state 0 (Null).  Hold state: Idle
PRI Span: 1 q931.c:7135 q931_hangup: Hangup other cref:23832
PRI Span: 1 q931.c:6892 __q931_hangup: ourstate Null, peerstate Null, hold-state Idle
PRI Span: 1 Destroying call 0x7f7a900012f0, ourstate Null, peerstate Null, hold-state Idle
 
Below is my dahdi-channels.conf:
 
; Span 1: WCTE2/0/1 "WCTE23X (PCI) Card 0 Span 1" (MASTER)
group=0,11
context=from-pstn
switchtype = national
signalling = pri_cpe
channel => 1-23
context = default
group = 63
 
; Span 2: WCTE2/0/2 "WCTE23X (PCI) Card 0 Span 2"
group=0,12
context=from-pstn
switchtype = national
signalling = pri_cpe
channel => 25-47
context = default
group = 63
 
Below is my chan_dahdi.conf:
 
; chan_dahdi.conf Configuration File
[trunkgroups]
 
[channels]
 
callerid=asreceived
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
relaxdtmf=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
immediate=no
 
#include /etc/asterisk/dahdi-channels.conf
 
Excerpt from extensions.conf (from-pstn is the context that calls come in on):
 
; calls coming in from the pstn
[from-pstn]
exten => _X.,1,GoSub(sub-dial-cudatel-extension,start,1(${EXTEN}))
 
; sends a call to cudatel
[sub-dial-cudatel-extension]
exten => start,1,NoOp(Forwarding Call for ${ARG1} from ${CALLERID(num)} to CudaTel)
        same => n,Answer()
        same => n,Set(DialedExten=${FILTER(0-9, ${ARG1})})
        same => n,Dial(${INTERNALSIP}/${DialedExten})
        same => n,HangUp()

[tg at ovm-group.com]

Hi,

it seems, that the caller hangs up immediatly after calling. Try to reproduce it by yourself. Dial the number (to reach your asterisk server) and hangup after ~ 0.5 sec (or whatever).

Best regards,
-Thorsten-

Am 30.04.2014 01:11, schrieb Bryce Lowe:

[brycejlowe at gmail.com]

Thank you for your feedback.



The call that I attached was actually from me.  I get a message on my ATT phone that says "the wireless customer you...message 1 WA01ML".  It is pretty hit or miss.


On Wed, Apr 30, 2014 at 1:45 AM, Thorsten Göllner <tg@ovm-group.com (tg@ovm-group.com)> wrote: