06-06-2008 03:14 PM - edited 03-18-2019 09:04 PM
Dear sir
i wanted to know that can i use voip call and fax call on same number?
i have PSTN numeber 5231884. and i have configure ip phone with extension 884.
I have configure three dial-peers as mentioned below
dial-peer voice 100 voip
destination-pattern 8..
session target ipv4:192.168.1.5:1721
dtmf-relay h245-alphanumeric
codec g711alaw
fax rate 14400
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback cisco
no vad
!
dial-peer voice 2 voip
incoming called-number .T
dtmf-relay h245-alphanumeric
codec g711alaw
fax rate 14400
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback cisco
no vad
dial-peer voice 200 voip
description IP PHone Extensions
destination-pattern 8..
session target ipv4:192.168.1.54
dtmf-relay h245-alphanumeric
codec g711ulaw
no vad
when a external user send Fax my dial-peer 100 picks it and recive fax on my third party system.
when i change precedence in dial-peer 200 my internal ip phone (884) rings perfectly.
but problem is that either Fax dial-peer works or dial-peer for ip phone works. both can not work at a time. means my gateway doesnot automatically recognize call for Fax or ip phone call.
i wanted to know how can i use same number for both ,if external user send fax it should send call on fax , when external user call on my ip phone ,my phone should ring.
your assistance will be higly appreciated
thanks
06-06-2008 05:33 PM
The common solution for your scenario is to use a fax detect script and have the voice gateway distinguish if the call is a fax call or a voice call. If the voice gateway, detects fax CNG tones on the inbound call then it is treated like a fax call and if the CNG tones are not detected then the call is treated like a voice call. This feature is documented here -
Please read the documentation on this feature thoroughly as there are quite a few caveats. The biggest one for you would be that the default script available through Cisco only supports T.37. You would need to customize the script yourself or contact Cisco Developer Services in order to get a script that supports T.38.
Regards,
David
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