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Analog Voice Gateway 204

Experts

I have configured the analog voice gateway as per the attached file just confirm to me the config are perfect, fax protocol is cisco, if it is recommended to change please advice i have followed below links.

For Voice Gateway configuration

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/42105-vg200-cfg.html

For Call manager MGCP gateway configuration

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/42101-cm-cfg.html#task3

And the below link little bit confusing me for the FAX protocol in section Telco — PRI — GW — MGCP — CUCM — MGCP — VG224 — Fax/Modem

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-border-element/115742-fax-modem-call-flows-00.html#concept2

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions

Analog Voice Gateway 204

Hi Adam,

If you are running FAX:

If this is the call flow:

Telco — PRI — GW — MGCP — CUCM — MGCP — VG224 — Fax/Modem

On both the Mgcp gateway make sure  you have Modem passthrough enabled by the commands below:

no ccm-manager fax protocol cisco                             

mgcp modem passthrough voip mode nse

mgcp modem passthrough voip codec g711ulaw

(Bounce the MGCP stack by doing a "no mgcp/mgcp")

voice service pots

fax rate disable

Make sure you have that you have "Modem PassthroughRequired Field" drop through option on the CUCM/MGCP page enabled and T.38 disabled.

Rate the post accordingly.

Regards,

Kevin

11 REPLIES
New Member

Analog Voice Gateway 204

Experts,

you'll hints are very helpful. please suggest.

thanks

Analog Voice Gateway 204

Hi Adam,

If you are running FAX:

If this is the call flow:

Telco — PRI — GW — MGCP — CUCM — MGCP — VG224 — Fax/Modem

On both the Mgcp gateway make sure  you have Modem passthrough enabled by the commands below:

no ccm-manager fax protocol cisco                             

mgcp modem passthrough voip mode nse

mgcp modem passthrough voip codec g711ulaw

(Bounce the MGCP stack by doing a "no mgcp/mgcp")

voice service pots

fax rate disable

Make sure you have that you have "Modem PassthroughRequired Field" drop through option on the CUCM/MGCP page enabled and T.38 disabled.

Rate the post accordingly.

Regards,

Kevin

Re: Analog Voice Gateway 204

Good info Kevin (+5)


Regards,

Yosh

HTH Regards, Yosh

Analog Voice Gateway 204

Thanks Yosh

New Member

Analog Voice Gateway 204

Dear Kevin,

Telco — PRI — GW — MGCP — CUCM — MGCP — VG224 — Fax/Modem

instead of VG224 i have VG204

with fax protocol cisco the fax will not work??

what has to be selected for the FXS ports on the CUCM there are 3 option loop start, ground,pots??? what i have to choose

Thanks

Analog Voice Gateway 204

Hi Adam,

You can apply the command i mentioned in my earlier post for running modem passthrough.

   Regards,

Kevin

Analog Voice Gateway 204

Hi Adam,

You can apply the command i mentioned in my earlier post for running modem passthrough.

Check the snapshot  below:

VG204FAX.png

   Regards,

Kevin

Analog Voice Gateway 204

Hi Adam,

Forgot to add this, just make sure you do not have slip on the PRI, this how you would check it:

mf-access#show controller t1 0
    T1 0 is up.
    No alarms detected.
    Version info of slot 0: HW: 2, Firmware: 16, NEAT PLD: 14, NR Bus PLD: 22
    Framing is ESF, Line Code is B8ZS, Clock Source is Internal.
    Data in current interval (850 seconds elapsed):
    0 Line Code Violations, 0 Path Code Violations
    0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
    0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Regards,

Kevin

New Member

Re: Analog Voice Gateway 204

Thanks for the reply kevin,

On both the Mgcp gateway make sure  you have Modem passthrough enabled by the commands below:

no ccm-manager fax protocol cisco                             

mgcp modem passthrough voip mode nse

mgcp modem passthrough voip codec g711ulaw

(Bounce the MGCP stack by doing a "no mgcp/mgcp")

voice service pots

fax rate disable

The above commands should be executed on analog VG204 and also on the Voice Gateway on which ITSP PRI is terminating.

correct me if  i am wrong.????

Thanks

Analog Voice Gateway 204

Hi Adam,

If the PRI is added as MGCP to the CUCM, then yes.

Regards,

Kevin

New Member

Re: Analog Voice Gateway 204

thanks for the reply

but what click you for the slips,, on applying those modem passthrough commands will generate any slips???  because at current my PRI is stable.

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