[cisco-voip] fax passthrough + fax relay on same MGCP gateway (incl 6608)?

Nick Matthews matthnick at gmail.com
Mon Apr 19 15:31:00 EDT 2010


I don't think the 6608 will do more than one type at a time.  The
VG248 is stuck with CFR (BAD) or passthrough.  This one is pretty
simple.

-nick

On Mon, Apr 19, 2010 at 1:41 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
> I've done some more reading, but I'm still confused on a few things fax.
> This thread is to hopefully help me understand if I can run both fax
> passthrough and fax relay on the same MGCP gateways, including 6608s.
>
> We have a site (Site B) coming on board that is currently using cisco fax
> relay on their gateway and on most of their VG248 ports (some VG248 ports
> have relay disabled). They have a 3725 running a PRI (MGCP).
>
> HQ (Site A) has a bank of 6608s (MGCP) and a couple of PRIs on a 3845 on a
> remote gateway (also MGCP). We have VG224 ports used for modems/faxes at the
> remote site. Everything is configured for fax passthrough and is working
> hunky dory.
>
> Is it possible to configure the HQ gateways (both 6608s and 3845 ports) to
> recognize both passthrough and relay? Are there problems doing this?
>
> I've included some relevant config info below.
>
> ________________________________
> CallManager 4.1(3) -> upgrading to CUCM 7.1(3) sometime next summer.
> ________________________________
> SITE A:
>
> GATEWAY (3845) [remote gateway]
>
> !
> boot system flash:c3845-spservicesk9-mz.124-11.T2.bin
> !
> no ccm-manager fax protocol cisco
> !
> mgcp
> mgcp call-agent 10.104.96.104 2427 service-type mgcp version 0.1
> mgcp dtmf-relay voip codec all mode out-of-band
> mgcp rtp unreachable timeout 1000 action notify
> mgcp modem passthrough voip mode nse
> mgcp package-capability rtp-package
> no mgcp package-capability res-package
> mgcp package-capability sst-package
> no mgcp package-capability fxr-package
> mgcp package-capability pre-package
> no mgcp timer receive-rtcp
> mgcp sdp simple
> mgcp fax t38 inhibit
> mgcp rtp payload-type g726r16 static
> mgcp bind control source-interface Loopback104
> mgcp bind media source-interface Loopback104
> !
>
> 6608 (at HQ):
>
> Voice Calls: checked
> Modem Calls: checked
> Fax Calls: checked
>
> Fax Relay Enable: unchecked
> Fax Error Correction: unchecked
> Max Fax Rate: 14400
> Payload Size: 20
> Country Code: 65535
> Vendor Code: 65535
> Fax/Modem Packet Redundancy: unchecked
> NSE Type: IOS Gateway
>
> VG224
>
> !
> voice service voip
>      mgcp modem passthrough voip codec g711ulaw
> !
> ________________________________
> SITE B:
>
> GATEWAY:
>
> !
> boot system flash c3725-ipvoice-mz.123-8.T3.bin
> !
> mgcp
> mgcp call-agent 10.104.184.6 2427 service-type mgcp version 0.1
> mgcp dtmf-relay voip codec all mode out-of-band
> mgcp rtp unreachable timeout 1000 action notify
> mgcp modem relay voip mode nse
> mgcp package-capability rtp-package
> mgcp package-capability sst-package
> no mgcp package-capability fxr-package
> no mgcp timer receive-rtcp
> mgcp sdp simple
> mgcp fax rate 14400
> no mgcp fax t38 ecm
> mgcp fax t38 inhibit
> no mgcp explicit hookstate
> mgcp rtp payload-type g726r16 static
> !
>
> VG248:
>
> Software version : 1.3(2)
>
> port specific parameters:
>
>            ----------------------------------------------------------
>           |                Cisco VG248 (VGC0e38cd87ee)               |
>     --------------- ------------------------------------------------ -------
>    | Port selection| Port 1 parameters                              |
> |
>
> |---------------|------------------------------------------------|-------|
>    |    1 Enabled  | Status                  (enabled)              |
> |
>    |    2 Enabled 4| Call control mode       (standard)             |
> |
>    |    3 Enabled 6| Caller ID               (disabled)             |
> |
>    |    4 Enabled 6| MWI method              (none)                 |
> |
>    |    5 Enabled 6| VMWI variant            (<country default>)    |
> |
>    |    6 Enabled 6| Call supervision method (none)                 |
> |
>    |    7 Enabled 6| Input gain              (0)                    |
> |
>    |    8 Enabled 6| Output gain             (0)                    |
> |
>    |    9 Enabled 6| Dialing digit detection (default: use DSP)     |
> |
>    |   10 Disabled | Fax relay               (Cisco fax relay)      |
> |
>    |   11 Disabled | Fax relay ECM           (disabled)             |
> |
>    |   12 Disabled | Fax relay NSF           (override with 000000) |
> |
>    |   13 Enabled 6| Passthrough mode        (default: automatic)   |
> |
>    |   14 Enabled 6 ------------------------------------------------
> |
>    |   15 Enabled 6282        31 Disabled            47 Disabled
> |
>    |   16 Disabled            32 Disabled            48 Disabled
> |
>    |          '*' - port in use        press 'R' to enter range
> |
>     ------------------------------------------------------------------------
>
>            ----------------------------------------------------------
>           |                Cisco VG248 (VGC0e38cd87ee)               |
>             --------------------------------------------------------------
>            | Advanced settings                                            |
>            |--------------------------------------------------------------|
>            |^Media receive timeout         (disabled)                     |
>            | Port busy signaling           (none)                         |
>            | DTMF tone duration            (default: 100ms)               |
>            | Echo cancelling policy        (default: use SLIC)            |
>            | Hook flash timer              (<country default>)            |
>            | Hook flash reject period      (none)                         |
>            | Distinctive ringing           (default: no call distinction) |
>            | Passthrough signaling         (IOS mode)                     |
>            | Passthrough codec             (G.711 u-law)                  |
>            | Fax relay payload size        (default: 20)                  |
>            | Fax relay maximum speed       (default: 14400 bps)           |
>            | Fax relay playout delay       (default: 300)                 |
>            | Load control                  (disabled)                     |
>            | Load control (% CPU)          (0)                            |
>            | Load control hysteresis       (0)                            |
>             --------------------------------------------------------------
>
>
> ________________________________
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Cooking with unix is easy. You just sed it and forget it.
>                               - LFJ (with apologies to Mr. Popeil)
>
>
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>
>



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