Vanguard Managed Solutions 7300 Series installation manual Parameter Dynamic Modem

Vanguard 7300 Port Configuration

Dynamic Modem This is a description of the Dynamic Modem parameter:

Parameter

Dynamic Modem

Range:	Enabled, Disabled
Default:	Disabled
Description:	Enable or Disable the feature of the dynamic switching to G.711
	after modem detection.
	If Enabled, the DSP which detects the modem tone switches to
	codec G.711 regardless of the codec configured.

Warning

For digital interfaces the timing must be traceable back to the same clock source and/ or a Stratum 1 clock. If this is not true frame slips will occur causing the modem traffic to loose some data. However, if the modem is using some type of error correction and/or the modem is transporting a protocol that has error correction (such as PPP) the clock slips will have less impact.

Warning

Modem traffic over a QUAD FXS or FXO will not run error free. The QUAD FXS and FXO run from an internal oscillator. There is no clock synchronization between the QUAD FXS or FXO and any other voice interface. The amount of errors and the error rate is dependent on how close the internal oscillator is and cannot be determined in advance. However, if the modem is using some type of error correction and/or the modem is transporting a protocol that has error correction (such as PPP) the errors will have less impact.

Operating Your Vanguard 7300 4-17