FXO can't dial out

Hi there,

I installed Elastix 1.6 with a Sangoma A400 12FXO 12FXS card, now I have problem dial out from FXO port. I installed DAHDI, wanpipe, trunks etc., I can dial in from the PSTN number and route to my IVR no problem, I can dial out from other Trunks, but I just can’t dial out through the FXO trunks. I think the routing is ok: from the CLI> I do see DAHDI/3-1 answered, which DAHDI/3 is my first FXO port in Group 0 – see below:

-- Executing [s@macro-dialout-trunk:19] Dial("SIP/3361-b00a8990", "DAHDI/g0/512XXXX|300|") in new stack
-- Called g0/512XXXX
-- DAHDI/3-1 answered SIP/3361-b00a8990
-- Executing [h@macro-dialout-trunk:1] Macro("SIP/3361-b00a8990", "hangupcall|") in new stack

but I didn’t hear anything after I dialed, the other party didn’t hear ring, and after around 15 sec, it just hangup. I have tried to add area code, I got same result. Here is part of the configuration files:

CLI>DAHDI show channels:

Chan Extension Context Language MOH Interpret
pseudo default default
1 from-internal default
2 from-internal default
3 from-zaptel default
4 from-zaptel default
5 from-zaptel default

and chan_dahdi.conf:
[trunkgroups]

[channels]
context=default
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

;Sangoma AFT-A400 [slot:4 bus:14 span:1]
context=from-internal
group=1
echocancel=yes
faxdetect=incoming
signalling = fxo_ks
channel => 1

context=from-internal
group=1
echocancel=yes
faxdetect=incoming
signalling = fxo_ks
channel => 2

context=from-zaptel
group=0
echocancel=yes
faxdetect=incoming
signalling = fxs_ks
channel => 3

context=from-zaptel
group=0
echocancel=yes
faxdetect=incoming
signalling = fxs_ks
channel => 4

context=from-zaptel
group=0
echocancel=yes
faxdetect=incoming
signalling = fxs_ks
channel => 5

and dahdi-channels.conf:

; Span 1: WRTDM/0 “wrtdm Board 1” (MASTER)
;;; line="1 WRTDM/0/0 FXOKS (In use) (SWEC: MG2)"
signalling=fxo_ks
callerid=“Channel 1” <4001> ---- I don’t know where 4001 comes from
mailbox=4001
group=5
context=from-internal
channel => 1
callerid=
mailbox=
group=
context=default

;;; line="2 WRTDM/0/1 FXOKS (In use) (SWEC: MG2)"
signalling=fxo_ks
callerid=“Channel 2” <4002>
mailbox=4002
group=5
context=from-internal
channel => 2
callerid=
mailbox=
group=
context=default

;;; line="3 WRTDM/0/2 FXSKS (In use) (SWEC: MG2)"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 3
callerid=
group=
context=default

;;; line="4 WRTDM/0/3 FXSKS (In use) (SWEC: MG2)"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 4
callerid=
group=
context=default

;;; line="5 WRTDM/0/4 FXSKS (In use) (SWEC: MG2)"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 5
callerid=
group=
context=default

and /etc/dahdi/system.conf:

Span 1: WRTDM/0 “wrtdm Board 1” (MASTER)

fxoks=1
echocanceller=oslec,1
fxoks=2
echocanceller=oslec,2
fxsks=3
echocanceller=oslec,3
fxsks=4
echocanceller=oslec,4
fxsks=5
echocanceller=oslec,5

it was echocanceller=mg2,3 before I ran dahdi_genconf, but the results were all the same.

Anyone please help. Thanks a lot.

Fred

Take a look at this link:

http://www.freepbx.org/forum/freepbx/users/outgoing-calls-stopped-working-incoming-calls-still-work#comment-27122

Thank you for the reply.

I just found out what causes the problem. The PSTN lines I was trying to move from our old switch were ground start lines. I did a test with another loop start line (on another port) and it worked. So I think it’s the configuration on the switch doesn’t match ground start signal. How can I configure the switch to use ground start signal? Thank you very much.

Fred

Telco should be able to reconfigure the POTS lines for loop start.

If that doesn’t work, call Sangoma. They have excellent tech support.

Bill

One More Thing:

Viking makes a module that converts Ground Start to Loop Start…

http://www.vikingelectronics.com/products/view_product.php?pname=PF-6A%20(DBB)

Bill Ford

Thank you Bill.

I will try Sangoma support, then the phone company.

Thank you very much for the help.

Fred