I just got this working last week. I doubt this is supported by Microsoft, Audiocodes or OpenText but it works.
Incoming
PSTN - > Audiocodes -> Lync (Call tracing/logging information captured)
|--------> Media Bypass -> RightFax
Outgoing
RightFax -> Lync (Call tracing/logging information captured)
|--------> Media Bypass -> Audiocodes -> PSTN
I am using the following configuration
RightFax: 9.40 Enterprise (w/SP1 SR4)
Brooktrout: TRxStream Board (Driver 6.2.0.4)
Using the Brooktrout Configuration Tool, I configured the board as follows
Call Control Parameters\Module
Call Control: IP
IP Call Control Module: SIP (with IP information defined)
IP Call Control Modules\SIP
IP Parameters
Primary Gateway: Points at the audiocodes box, port 5060
From Value: <sip:[E.164_PHONENUMBER]@[RIGHTFAX_IPADDRESS]:5060>
This has to be set to a valid phone number in Lync, otherwise Lync will not accept it. You
can SIP enable the RightFax service account and use that. Note that the RIGHTFAX_IPADDRESS value should be the server IP address, not the IP assigned to the fax board.
T.38 Parameters
Fax Transporting Protocol: G.711 Pass-through only (note that you may have to stop the DocTransport Module in order to make this field accessible).
Max Bit Rate, bps: 14400 (cannot be set any higher with Audiocodes integration)
Everything else is set to defaults
Audiocodes configuration
Fax/Modem/CID Settings
Fax Transport Mode: RelayEnable
Fax CNG Mode: Doesnt send T.38 Re-INVITE
CNG Detector Mode: Disable
Fax Relay Max Rate (bps): 14400bps
Fax/Modem Bypass Coder Type: G711Mulaw
Create an entry for the RightFax server in the IP Group Table and the Proxy Sets Table
VoIP > SIP Definitions > General Parameters
Fax Signaling Method: G.711 Transport
Detect Fax on Answer Tone: Initiate T.38 on Preamble
VoIP > GW and IP to IP > Routing > Tel to IP Routing
1. If the Src IP Group ID is the RightFax index number from the IP Group Table, send it to the Lync server with the proper protcol (we use TLS)
2. It the destination phone number is a Fax phone number send it to the RightFax server with the UDP protocol
VoIP > GW and IP to IP > Routing > IP to Trunk Group Routing
1. If the Source IP address is the RightFax server IP address, send to Trunk group -1, set the Source IP to the RightFax server based on the IP Group table value
Using the above configuration I have been able to send and recieve all faxes I have tested.
- Edited by
Eddie Berge
Monday, October 22, 2012 4:29 PM
- Proposed as answer by
Alba Yang
Friday, January 10, 2014 3:38 AM