WARNING: this is an automatic post retrieved from the Asterisk-Users Mailing List, not an authored post
Mailing-list Collector
March 25, 2011
Asterisk Users
Tags: cross cable, exten, hangup, Mar, PRI, PSTN, sip, xmit
Following is my scenario to connect back to back PRI of two asterisk server. PRI cards are Sangoma A102D
[Asterisk1]————[PRI]-Cross Cable———[Asterisk2]
Asterisk1
; Span 1 (MASTER)
switchtype = national ; commonly referred to as NI2
context = from-pstn
group = 0,24
echocancel = yes
signalling = pri_net
channel => 1-23
Asterisk2
; Span 1
switchtype = national ; commonly referred to as NI2
context = from-pstn
group = 0,24
echocancel = yes
signalling = pri_cpe
channel => 1-23
Following is my extensions.conf stuff on both machine (extension number could be change)
[from-pstn]
exten => s,1,Answer()
same => n,Playback(hello-world)
same => n,Hangup()
[from-sip]
exten => _7XXX,1,Answer()
same => n,Dial(SIP/${EXTEN})
same => n,Hangup()
exten => 7527,1,Dial(DAHDI/G0/7527)
But i am getting following error when i am calling from A to B
satish-desktop*CLI>
[Mar 25 15:40:19] WARNING[4519]: app_dial.c:2039 dial_exec_full: Unable to create channel of type ‘DAHDI’ (cause 34 – Circuit/channel congestion)
[Mar 25 15:40:19] WARNING[4519]: acl.c:698 ast_ouraddrfor: Cannot connect
[Mar 25 15:40:19] WARNING[4519]: chan_sip.c:3115 __sip_xmit: sip_xmit of 0x14249d0 (len 763) to 0.0.29.103:5060 returned -1: Invalid argument
[Mar 25 15:40:19] WARNING[4371]: chan_sip.c:3115 __sip_xmit: sip_xmit of 0x14249d0 (len 763) to 0.0.29.103:5060 returned -1: Invalid argument