TELES VoIPBox BRI, Reference Manual

Page: 257 / 280

11 Additional VoIP parameters
VoIPBox BRI Version 18.0.002 Page 257
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
VoipFaxProtocol=<int>
Defines the protocol used:
0 = TCP
1 = FRF.11
2 = UDP, data-rate management 1
3 = UDP, data-rate management 2 (default)
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 sys-
tem 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.
VoipSuppressInitialT38Signalling=<mode> (SIP only)
Enter Yes to suppress the SDP header m=image t38 in all SIP messages until reinvite
of the actual fax detection occurs (default No).
VoipT38CtrlDataRedundancy=<int>
Defines the redundancy level for control packets:
0 = Disable (default)
1-7 = Sets level
VoipT38Enforce=<mode>
Enter Yes to switch to T38 although the B party does not signalize T38. (default Yes).
VoipT38ErrorCorrectionMode=<int>
Sets the error-correction mode:
0 = Redundancy (default)
1 = Forward error correction
VoipT38ImageDataRedundancy=<int>
Defines the redundancy level for fax content:
0 = Disable (default)
1-3 = Sets level
Table 11.9 Customized parameters: VoIP fax (continued)
VoIP Fax/Modem Parameters