Configuring Maximum Fax Rate; Configuring Fax Training Mode - HP FlexNetwork MSR Series Configuration Manual

Configuring maximum fax rate

You can configure the maximum fax rate according to the fax protocols. If the baud rate is set to a
value other than disable and voice, the configured value is adopted as the allowed maximum fax
rate.
If voice mode is adopted, the allowed maximum fax rate is determined first in accordance with voice
coding/decoding protocols.
•
If G.711 is used, the fax rate is 14,400 bps and the corresponding fax protocol is V.17.
•
If G.723.1 Annex A is used, the fax rate is 4800 bps and the corresponding fax protocol is V.27.
•
If G.726 is adopted, the fax rate is 14,400 bps and the corresponding fax protocol is V.17.
•
If G.729 is used, the fax rate is 7200 bps and the corresponding fax protocol is V.29.
If the fax rate is set to "disable", the fax function is disabled.
Configuration prerequisites
VoIP configuration is completed, IP calls can be made successfully, and fax machines are connected
correctly.
Configuration procedure
To configure the fax rate:
Step
1. Enter system view.
2. Enter voice view.
3. Enter voice dial program
view.
4. Enter voice entity view.
5. Configure the allowed
maximum fax rate.

Configuring fax training mode

There are two fax training modes: local training and point-to-point training.
•
Local training—The gateways participate in the rate training between fax terminals. In the
local training mode, rate training is performed between fax terminals and gateways respectively,
and then the receiving gateway sends the training result of the receiving fax terminal to the
transmitting gateway. The transmitting gateway finalizes the packet transmission rate by
comparing the received training result with its own training result.
•
Point-to-point training—The gateways do not participate in the rate training between two fax
terminals. In this mode, rate training is performed between two fax terminals and is transparent
to the gateways.
Perform the following configuration in voice entity view.
Command
system-view
voice-setup
dial-program
entity entity-number { pots |
voip }
fax baudrate { 2400 | 4800 | 9600
| 14400 | disable | voice }
276
Remarks
N/A
N/A
N/A
N/A
By default, the voice mode is first
used to determine the fax rate.
Note that when the disable
keyword is provided, if the call
control protocol is SIP, private
T.38 and standard T.38 faxes are
disabled.