TELES ECOTEL - Fax;Modem Parameters

ADDITIONAL VOIP PARAMETERS
CHAPTER 14
236
ECOTEL 3G 16.1. Revised: 2011.
14.6 FAX/MODEM PARAMETERS
Table 14.9 Customized Parameters: VoIP Fax
VoIP Fax/Modem Parameters
VoipFaxTransport=<int>
0 = fax detection is switched off, no codec fallback at all (default).
1 = signaling will switch to T.38 (framesize 40ms). The codec will change when the system detects a fax or
modem connection on the channel.
2 = fallback to G711a (framesize 40ms).
NOTE: Bear in mind that if T.38 is defined in the
VoipCompression=<list> parameter of the
VoIP profile, the system will switch only when it detects a modem connection. Fax calls will still
be transmitted using T.38.
VoipFaxBypassPayloadType=<num>
Defined the payload type for a fax’s RTP packets when T.38 is not used (default 102).
VoipFaxMaxRate=<num>
If the peer does not support auto negotiation or has a fixed transmission rate, you can define the fixed rate:
0 - 2400 Bit/sec
1 - 4800
2 - 7200
3 - 9600 (default)
4 - 12000
5 - 14400
EXAMPLE:
VoipFaxMaxRate=5
VoipFaxECM=<mode>
You can use this parameter to enable the error correction mode for fax transmission:
yes=enabled,
no=disabled (default).
VoipFaxProtocol=<int>
Defines the protocol used:
0 = TCP
1 = FRF.11
2 = UDP, data-rate management 1
3 = UDP, data-rate management 2 (default)
VoipT38ErrorCorrectionMode=<int>
Sets the error-correction mode:
0 = Redundancy (default)
1 = Forward error correction