I am trying to setup Asterisk to act like a PBX connected via a PRI gateway to a voice netowrk where Asterisk is doing outbound overlap dialing for calls that terminate via that PRI. AFter researching through the archives and online dcocs, I thought I had everyting setup right, dialplan configured for ‘_X!’ and the
‘overlapdial=yes’ in the chan_dahdi.conf file, but when I try and make a call, while the first digit triggers the outbound SETUP message, that SETUP message always includes a ‘Sending Complete’
parameter and any subsequent digits received from the originaing client seem to be getting ignored as opposed to sent over in subsequent ISDN INFORMATION messages.

Any idea what I might be missing here…i did restart both DAHDI and Asterisk after making the changes to support overlap.

Logs and snippets are below..

Thanks matt

localhost*CLI> core show version Asterisk 15.2.0 built by root @ localhost.localdomain on a x86_64 running Linux on 2018-02-21 19:10:36 UTC

chan_dahdi.conf

; Overlap dialing mode (sending overlap digits)
; Cannot be changed on a reload.
;
; incoming: incoming direction only
; outgoing: outgoing direction only
; no: neither direction
; yes or both: both directions
;
overlapdial=yes

DialPlan

localhost*CLI> dialplan show sippOrig
[ Context ‘sippOrig’ created by ‘pbx_config’ ]
‘_X!’ => 1. Dial(DAHDI/g1/${EXTEN})
[extensions.conf:697]

-= 1 extension (1 priority) in 1 context. =-
localhost*CLI>

Debug trace of the ISDN messaging

— Executing [7@sippOrig:1] Dial(“PJSIP/5712391000-00000019”,
“DAHDI/g1/7”) in new stack PRI Span: 1 — Making new call for cref 32794
— Requested transfer capability: 0x00 – SPEECH
PRI Span: 1
PRI Span: 1 > DL-DATA request PRI Span: 1 > Protocol Discriminator: Q.931 (8) len4
PRI Span: 1 > TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent from originator)
PRI Span: 1 > Message Type: SETUP (5)
PRI Span: 1 TEI=0 Transmitting N(S)F, window is open V(A)F K=7
PRI Span: 1
PRI Span: 1 > Protocol Discriminator: Q.931 (8) len4
PRI Span: 1 > TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent from originator)
PRI Span: 1 > Message Type: SETUP (5)
PRI Span: 1 > [04 03 80 90 a3]
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:
A-Law (35)
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 > [6c 0c 21 81 35 37 31 32 33 39 31 30 30 30]
PRI Span: 1 > Calling Party Number (len) [ Ext: 0 TON: National Number
(2) NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
PRI Span: 1 > Presentation: Presentation allowed, User-provided, verified and passed (1) ‘5712391000’ ]
PRI Span: 1 > [70 02 80 37]
PRI Span: 1 > Called Party Number (len= 4) [ Ext: 1 TON: Unknown Number Type (0) NPI: Unknown Number Plan (0) ‘7’ ]
PRI Span: 1 > [a1]
PRI Span: 1 > Sending Complete (len= 1)
PRI Span: 1 q931.c:6531 q931_setup: Call 32794 enters state 1 (Call Initiated). Hold state: Idle
— Called DAHDI/g1/7
PRI Span: 1
PRI Span: 1 < Protocol Discriminator: Q.931 (8) len PRI Span: 1 < TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent to originator) PRI Span: 1 < Message Type: CALL PROCEEDING (2) PRI Span: 1 < [18 03 a9 83 81] PRI Span: 1 < Channel ID (len= 5) [ Ext: 1 IntID: Implicit Other(PRI) Spare: 0 Exclusive 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 < [1e 02 80 88] PRI Span: 1 < Progress Indicator (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) 0: 0 Location: User (0) PRI Span: 1 < Ext: 1 Progress Description: Inband information or appropriate pattern now available. (8) ] PRI Span: 1 Received message for call 0x7fa6e00070b0 on link 0x1b1a130 TEI/SAPI 0/0 PRI Span: 1 -- Processing IE 24 (cs0, Channel ID) PRI Span: 1 -- Processing IE 30 (cs0, Progress Indicator) PRI Span: 1 q931.c:9095 post_handle_q931_message: Call 32794 enters state 3 (Outgoing Call Proceeding). Hold state: Idle Span 1: Processing event PRI_EVENT_PROCEEDING(13) -- DAHDI/i1/7-1a is proceeding passing it to PJSIP/5712391000-00000019 -- DAHDI/i1/7-1a is making progress passing it to PJSIP/5712391000-00000019 > 0x7fa6c0068f00 — Strict RTP learning after remote address set to:
10.100.0.95:51670
> 0x7fa6c0068f00 — Strict RTP switching to RTP target address
10.100.0.95:51670 as source
[Apr 3 14:29:49] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘0’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:49] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘3’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:51] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘4’ may be ignored by peer. (Call level:3(Proceeding))
> 0x7fa6c0068f00 — Strict RTP learning complete – Locking on source address 10.100.0.95:51670
[Apr 3 14:29:51] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘7’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:51] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘6’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:52] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘2’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:52] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘0’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:52] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘0’ may be ignored by peer. (Call level:3(Proceeding))
[Apr 3 14:29:53] WARNING[25444][C-0000001a]: sig_pri.c:8797
sig_pri_digit_begin: Span 1: Digit ‘0’ may be ignored by peer. (Call level:3(Proceeding))
PRI Span: 1
PRI Span: 1 < Protocol Discriminator: Q.931 (8) len=9 PRI Span: 1 < TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent to originator) PRI Span: 1 < Message Type: DISCONNECT (69) PRI Span: 1 < [08 02 80 83] PRI Span: 1 < Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) Spare: 0 Location: User (0) PRI Span: 1 < Ext: 1 Cause: No route to destination (3), class = Normal Event (0) ] PRI Span: 1 Received message for call 0x7fa6e00070b0 on link 0x1b1a130 TEI/SAPI 0/0 PRI Span: 1 -- Processing IE 8 (cs0, Cause) PRI Span: 1 -- Found active call: 0x7fa6e00070b0 cref:32794 PRI Span: 1 q931.c:9345 post_handle_q931_message: Call 32794 enters state 12 (Disconnect Indication). Hold state: Idle Span 1: Processing event PRI_EVENT_HANGUP_REQ(15) -- Span 1: Channel 0/1 got hangup request, cause 3 PRI Span: 1 q931.c:7332 q931_hangup: Hangup other cref:32794 PRI Span: 1 q931.c:7089 __q931_hangup: ourstate Disconnect Indication, peerstate Disconnect Request, hold-state Idle PRI Span: 1 q931.c:6124 q931_release: Call 32794 enters state 19 (Release Request). Hold state: Idle PRI Span: 1 PRI Span: 1 > DL-DATA request PRI Span: 1 > Protocol Discriminator: Q.931 (8) len=9
PRI Span: 1 > TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent from originator)
PRI Span: 1 > Message Type: RELEASE (77)
PRI Span: 1 TEI=0 Transmitting N(S)G, window is open V(A)G K=7
PRI Span: 1
PRI Span: 1 > Protocol Discriminator: Q.931 (8) len=9
PRI Span: 1 > TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent from originator)
PRI Span: 1 > Message Type: RELEASE (77)
PRI Span: 1 > [08 02 81 83]
PRI Span: 1 > Cause (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0)
Spare: 0 Location: Private network serving the local user (1)
PRI Span: 1 > Ext: 1 Cause: No route to destination (3), class = Normal Event (0) ]
— Hungup ‘DAHDI/i1/7-1a’
== Everyone is busy/congested at this time (1:0/0/1)
— Auto fallthrough, channel ‘PJSIP/5712391000-00000019’ status is
‘CHANUNAVAIL’
PRI Span: 1
PRI Span: 1 < Protocol Discriminator: Q.931 (8) len=5 PRI Span: 1 < TEI=0 Call Ref: len= 2 (reference 26/0x1A) (Sent to originator) PRI Span: 1 < Message Type: RELEASE COMPLETE (90) PRI Span: 1 Received message for call 0x7fa6e00070b0 on link 0x1b1a130 TEI/SAPI 0/0 PRI Span: 1 q931.c:9204 post_handle_q931_message: Call 32794 enters state 0 (Null). Hold state: Idle PRI Span: 1 q931.c:7332 q931_hangup: Hangup other cref:32794 PRI Span: 1 q931.c:7089 __q931_hangup: ourstate Null, peerstate Null, hold-state Idle PRI Span: 1 Destroying call 0x7fa6e00070b0, ourstate Null, peerstate Null, hold-state Idle Span 1: Processing event PRI_EVENT_HANGUP_ACK(9) localhost*CLI>