Panasonic KX-NS1000 Programming Manual page 350

9.17 PBX Configuration—[1-1] Configuration—Slot—V-SIPEXT32—Port Property
Feature Guide References
5.2.2 SIP (Session Initiation Protocol) Extension
T38 FAX Rate Management Method
Specifies the rate management method when using the T.38 protocol.
Value Range
Transferred TCF, Local TCF
Maintenance Console Location
9.17 PBX Configuration—[1-1] Configuration—Slot—V-SIPEXT32—Port Property
Feature Guide References
5.2.2 SIP (Session Initiation Protocol) Extension
350 PC Programming Manual