Vanguard Managed Solutions 7300 Series installation manual Accessing Configuring Dynamic Modem

Vanguard 7300 Port Configuration

Dynamic Modem

Dynamic Modem is a new configuration parameter created to Enable or Disable DSP dynamically, switching to codec G.711 after a high speed or fax modem is detected. An example of various high speed modems (which utilizes phase reversal in the answer tone) are the V.32, V.34 and V.90.

Warning

The Dynamic Modem parameter is only supported on Texas Instruments (TI) DSP, this includes:

Accessing and

Configuring

Dynamic Modem

•Vanguard 6560 - HDSM

•Vanguard 6400 Series - T1/E1 with DSP

•Vanguard 7300 Series - T1/E1 with DSP

•Vanguard Quad FXS/FXO cards

The enabling and disabling of the dynamic switching to G.711, after modem detection, is configured at the voice port.

Note

The Dynamic Modem parameter is only effective when the H.323 Dynamic Coder configuration parameter is enabled.

Dynamic Modem introduces one new parameter under the Port Configuration menu. Use these steps to access the Dynamic Modem parameter:

1)Select Configure from the main menu.

2)Select Port, type the appropriate port number and press enter.

3)Type voice and press enter.

Figure 4-9shows an example of the Port Configuration Menu and the Dynamic Modem parameter.

Node:		Address:	Date:	Time:
Menu: Configure			Path:
	Port Configuration
	--*Port Number: 2006
	--*Port Type: voice
	--*Access Type: Digital
	--Interface Type: E&M
	--Signaling Mode: Normal
	--Signaling Control: Immediate
	--PCM Mode: A-law
	--Compression Rate (KHz): 8GkB
	--VAD Control: Enabled
	--H.323 Dynamic Coder: Enabled
	--Dynamic Modem: Disabled
	--Smoothing Delay (msec): 70

Figure 4-9. Voice Port Configuration Menu

4-16 Operating Your Vanguard 7300