Using Bypass Mechanism For V.34 Fax Transmission; Using Events Only Mechanism For V.34 Fax Transmission; Table 14-1: V.34 Fax To V.34 Fax - Bypass Mode - AudioCodes Mediant 1000 User Manual

User's Manual
Note:

14.6.1 Using Bypass Mechanism for V.34 Fax Transmission

Configuration:
Fax transport mode - Relay/Bypass
Vxx modem mode - Bypass
Expected events for V.34 Fax to V.34 Fax - Bypass Mode are shown in the table below.
Calling
EV_DETECT_MODEM
EV_DETECT_FAX (Refer to Note 1 below)
EV_END_FAX
Note:
Note that if the fax transport type is set to relay, the fax relay benefits for the T.30 fax
machines and, in parallel, are a variable when using a V.34 fax with its full rate. Therefore,
AudioCodes recommends this setup. Also note that if CNG relay is used, in some cases,
such as for manual answering machine, the fax may revert to T.30 fax with a speed of
14400 bps.

14.6.2 Using Events Only Mechanism for V.34 Fax Transmission

Use events only mode to transmit V.34 fax with its maximum capabilities:
Configuration:
Fax transport mode - Events only mode
Vxx modem mode - Events only mode
Expected events for V.34 Fax to V.34 Fax - Events Only Mode are shown in the table
below.
Version 4.6
For all the setups described below, the CNG tone detector is disabled.

Table 14-1: V.34 Fax to V.34 Fax - Bypass Mode

Answering
The board changes its status to bypass mode upon receiving fax bypass
packet from the remote side.
14. Appendix - DTMF, Fax & Modem Transport Modes
EV_DETECT_MODEM (2100 AM + Reversal)
EV_DETECT_FAX
EV_END_FAX
265 August 2005