Instruction manual

Total Access 850 System Manual Section 4 User Interface Guide

L2 PROTOCOL (T1 ATM FIRMWARE) – T1 INTERFACE > CUMTN

Configure the L2 PROTOCOL parameters and view the status of the T1 interface using Copper Mountain

Frame Relay protocol from this menu.

POTS STATS

Selecting this menu options will show real-time indication status of each voice port on the

Total Access 850. On a per port basis, the user can determine which ports are active/inactive as well

as view other statistics like

TXQ, INSERTS and DROPS INDICATORS.

The Echo Canceller module ADPCM functionality automatically shifts ON/OFF when fax

or modem calls are placed. To find out the current status of the Echo Canceller

functionality, check the current status of each FXS port. The path of the current status can

be found at the following path:

L2 PROTOCOL > STATUS > PVC STATUS > PROTOCOL

TATUS > POTS STATS > CODING TYPE (this will display either PCM of ADPCM).

TXQ

Displays the numbers of cells waiting in the buffer to transmit out the POTS port. Buffering

voice cells is used to minimize jitter.

INSERTS

Displays the number of cells the Total Access 850 inserted on the analog interface to keep the

current voice call connected when the network is idle.

DROPS

Displays the number of voice cells the Total Access 850 dropped due to a full buffer. This

indicates that the network is sending traffic faster than the Total Access 850 is anticipating

receiving cells; thus overrunning the jitter buffer. Excess drops could result in a timing

mismatch.

CLEAR STATS

Clears all recorded statistics and returns all counters to 0.