Good Afternoon,
I have an issue and I'm not sure that there is a solution but I figured I would ask the forum.
I have an ISDN to IP gateway (cisco 3945 Version 15.1 with UC license) which allows my older PBX (ISDN-PBX), which can only handle a T1, to link to my SIP PBX (PBX-SIP).
The ISDN-PBX has the connection to the PSTN outside world
The calls between the two work without issue.
ISDN-PBX extensions 35xx
SIP-PBX extensions 36xx
So if 3501 calls 3601 the call goes through without issue, and vice versa.
If a PSTN call comes in for 3601 the ISDN-PBX takes the call and passes it though without issue and vice versa again.
My problem arises that the SIP PBX cannot call forward (don't ask I already know, but it does not call forward right now)
Is there a way that the cisco Gateway can identify and setup a call forward on Busy or no-answer?
I though maybe Tcl but I have never endeavored into this.
Part of the configuration shown below.
Is there a way to use the voip dial-peer 3600 which will hand off the call to the SIP-PBX and if the call to the SIP PBX is busy or there is no answer at the Extension the cisco gateway can pull the call back and send it to the ISDN-PBX and forward to the user's cell phone?
So Incoming call to x3601
x3601 is busy
call forward to the cell phone of user at x3601.
The solution would have to be intelligent enough to recognize the extension number and call forward to the correct cell phone. This is why I though maybe Tcl?
Any help or ideas would be appreciated.
Thank you
Gateway Partial Configuration
controller T1 0/0/3
clock source internal
cablelength long 0db
pri-group timeslots 1-24
description ISDN-PBX TIE-LINE
!
interface Serial0/0/3:23
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn timer T310 120000
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable
!
voice-port 0/0/3:23
!
dial-peer voice 2 pots
description INBOUND POTS DIAL PEER
incoming called-number .
port 0/0/3:23
!
!
dial-peer voice 9011 pots
description INTERNATIONAL CALLING
destination-pattern 9011T
port 0/0/3:23
prefix 9011
!
dial-peer voice 10 pots
description LONG DISTANCE CALLING
destination-pattern 91[2-9]..[2-9]......
port 0/0/3:23
prefix 91
!
dial-peer voice 95800 pots
description LOCAL EXTENSION DIALLING
destination-pattern 35..
port 0/0/3:23
prefix 35
!
dial-peer voice 3600 voip
description LOCAL EXTENSION DIALLING TO SIP PBX
destination-pattern 36..
session protocol sipv2
session target ipv4:10.10.10.10
codec g711ulaw
!
