08-26-2015 10:25 PM - edited 03-17-2019 04:06 AM
Dear,
I am new to this part.
I have a customer who needs to configure Brooktrout SR140 with Cisco call manager.
I need the steps. Please help.
08-26-2015 11:26 PM
Wrong forum to ask, so little chance you will receive a valuable response. Use blue [ EDIT ] button to move it to IP Telephony.
But note similar question (Brooktrout Sr140 10.5 integration with 3945 Voice Gateway and CUCM 8.5) has been asked in correct community just few months ago with no response at all.
May be no expert is willing to respond so vague and generic question (this is volunteer forum, you know). So read Call Managers documentation and follow it. If you will have a specific question then ask.
Of course, you may call official support center.
08-30-2015 02:08 PM
You need to ask the vendor how to configure their hardware. On the Cisco side of things it should be a standard SIP trunk toward the application server running the Brooktrout software and enabling T.38 Fax Relay on your PSTN gateway. If the vendor has some non-standard SIP configuration that they want it's pretty standard for them to document how they want CUCM configured. Even Microsoft does this with Exchange UM - including screenshots - so expecting them to have clear documentation shouldn't be asking much.
! For standard 14.4kbps V.30 faxing voice service voip fax protocol t38 version 0 ls-redundancy 2 hs-redundancy 2 fallback pass-through g711ulaw modem relay nse codec g711ulaw gw-controlled ! If you want to enable 33.6kbps V.34 faxing voice service voip fax protocol t38 version 3 ls-redundancy 2 hs-redundancy 2 fallback pass-through g711ulaw modem relay nse codec g711ulaw gw-controlled no fax-relay sg3-to-g3
Ensure that the ls-redundancy and hs-redundancy parameters match what you configure on the Brooktrout side of things. Set them to zero (0) if it doesn't support packet redundancy.
It is also useful to clear the NSF field to avoid any proprietary vendor features that don't comply with the T.30/T.34 standard and could cause T.38 fax relay to fail.
! Dial-peer facing CUCM from the PSTN gateway dial-peer voice <tag> voip destination-pattern +.* session protocol sipv2 session server-group <tag> session transport udp incoming uri via <tag> destination dpg <tag> voice-class codec <tag> voice-class sip profiles <tag> voice-class sip options-keepalive profile <tag> dtmf-relay rtp-nte sip-kpml ip qos dscp cs3 signaling no vad fax nsf 000000
This answer assumes current versions of both IOS and CUCM.
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