fax protocol cisco not supported on ios Version 15.3(1)T1

[Darryl.Lipat]

i'm trying to setup a C3925 and trying to configure fax .but later found it no longer support " fax protocol cisco" as shown on the help commad. is there a no way to enable this or i'm just missing something? we are going to migrate our voice gateway C3825 to this c3925..

[Jonathan Schulenberg]

The PVDM3 DSPs do not support Cisco proprietary fax relay. You can use T.38 instead, or fax passthrough for devices which don't support T.38 (e.g. ATA186).

http://www.cisco.com/en/US/docs/ios/voice/fax/configuration/guide/vf_cfg_t38_fxrly.html

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