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Configuring the Voice Settings
Line1 Settings (PHONE Port)
Cisco SPA232D Administration Guide 120
4
T38 Relay FAX Failover to SIP Protocol-Based Passthrough FAX call
Echo Canc Enable Yes
FAX Enable T38 No
Modem Line No
FAX T38 Return to
Voice
No If voice call back is needed after
T38 fac call, set it to No.
Parameter Value Description
Parameter Value Description
FAX V21 Detect
Enable
Yes
FAX CNG Detect
Enable
Yes If CNG detection is not needed,
set it to No.
FAX Tone Detect
Mode
Caller or Callee
FAX Passthru
Method
ReINVITE
FAX Passthru Codec G.711u or G.711a Depends on the passthrough
codec used.
FAX Disable ECAN No If connected to SG3 fax machine,
set parameter to "Yes".
Echo Canc Enable Yes
FAX Enable T38 No
Modem Line No
FAX T38 Return to
Voice
No