04-11-2012 12:17 AM - edited 03-16-2019 10:34 AM
Hi There
Could someone help me to configure the VG204 as MGCP fax gateway?
I configured the gateway which connect to our fax machine
I have configured the VG204 as MGCP fax gateway and it already registered to our call manager(version 7).
there are 2 questions
1 is when try to configure the Subunit, it asked to choose port type (POTS, loop start and ground start), I am not sure which one should I chose
2. I chose the port type as POTS and the gateway registered to the call manager sucessfully, but I can not make fax call
if I try to ring from the fax machine after i dial the first number i will hear the busy tone
if I ring from normal IP phone to the fax number which connected to the VG204, it keeps ringing and would not change to fax dialtone
I checked the cisco website and could not find any information about the configuration on the call manager
Thank you in advance
04-11-2012 12:21 AM
If you want to connect any analog phone or FAX machine to that port, you must choose either loop start or ground start.
GP.
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04-11-2012 12:52 AM
Hi,
To make a call from the fax machine, you need to apply the correct CSS under its directory number.
For the fax incoming call, can you please post your configuration on the VG204 ?
i guess it's a t38 protocol not applied under your dial-peers.
04-11-2012 12:57 AM
PS: you may need to check under the Fax menu, if it is set to auto-answer.
04-11-2012 02:57 AM
Why MGCP? For fax ou should use H.323, or SIP. And for phones, SCCP.
04-11-2012 06:02 PM
Hi Paolo
When I choose the protocol, it only have MGCP and SCCP for the VG204 gateway in the CUCM, could you show me where can I select the protocol as H323 or SIP
Thank you in advance
04-11-2012 06:00 PM
I found out it was my human error caused the problem
For the outbound problem, it was because i plug the cable in the wrong port, but if I choose ground start I could not hear the external dialtone, I have to use loop start to make it work
For the inbound problem, because before i add the VG, there was already an ATA associated with the number, when i dialed the number it went to the ATA
Sorry for the confuse caused by my stupid error
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