Voice over IP Cisco - VG224 T38

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Author VG224 T38
voip@mrga.ch

2007-04-25, 7:11 am


We solved one part of our problem. We loaded IOS 12.3.13 to the Gateway and
applied the commands recommendes in the Release Notes for cisco Unified
CallManager Release 4.2(3) =

=95 no mgcp fax t38 inhibit
=95 mgcp package-capability fxr-package
=95 no ccm-manager fallback-mgcp

Everthing works fine with G729b codec. If we switch to PCMU (G711u) we can =
make
calls from the Gatway to a phone using G711. However if I want to make a ca=
ll
to a analog phone attached to the VG224 with G711 the phone rings. I can pi=
ck
up the phone but the caller gets a ringing tone from the gateway.

Any ideas why G711 behaves like this??

Reto
voip@mrga.ch

2007-04-25, 7:11 am

IOS Version is 12.4.13

Sorry for that.

Zitat von voip@mrga.ch:

> =


> We solved one part of our problem. We loaded IOS 12.3.13 to the Gateway a=

nd
> applied the commands recommendes in the Release Notes for cisco Unified
> CallManager Release 4.2(3) =


> =95 no mgcp fax t38 inhibit
> =95 mgcp package-capability fxr-package
> =95 no ccm-manager fallback-mgcp
> =


> Everthing works fine with G729b codec. If we switch to PCMU (G711u) we can
> make
> calls from the Gatway to a phone using G711. However if I want to make a
> call
> to a analog phone attached to the VG224 with G711 the phone rings. I can
> pick
> up the phone but the caller gets a ringing tone from the gateway.
> =


> Any ideas why G711 behaves like this??
> =


> Reto
> =


> =

voip@mrga.ch

2007-04-25, 1:11 pm

Our Gateways work now with the following configuration

IOS: 12.4.8 (12.4.13 did NOT work)

Adding the following commands:
no mgcp fax t38 inhibit
mgcp package-capability fxr-package
no ccm-manager fallback-mgcp

And everthing worked.

Thanks for your help and support.
Reto


> =


> We solved one part of our problem. We loaded IOS 12.4.13 to the Gateway a=

nd
> applied the commands recommendes in the Release Notes for cisco Unified
> CallManager Release 4.2(3) =


> =95 no mgcp fax t38 inhibit
> =95 mgcp package-capability fxr-package
> =95 no ccm-manager fallback-mgcp
> =


> Everthing works fine with G729b codec. If we switch to PCMU (G711u) we can
> make
> calls from the Gatway to a phone using G711. However if I want to make a
> call
> to a analog phone attached to the VG224 with G711 the phone rings. I can
> pick
> up the phone but the caller gets a ringing tone from the gateway.
> =


> Any ideas why G711 behaves like this??
> =


> Reto
> =


> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
> =

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