3Com T1/PRI manual Any changes made will take effect immediately

Configuring Span Lines 1 and 2 2-9

Configure the Short Haul NIC to handle the following cable lengths:

■0 – 133 ft.

■134 – 266 ft.

■267 – 399 ft.

■400 – 533 ft.

■534 – 655 ft.

If there is no Short Haul NIC installed behind the T1/PRI NAC, the main menu’s current setting for this option is not applicable.

Menu Option 16 Allowing for ALERTING message in response to SETUP request

When the T1/PRI NAC receives a SETUP request from the TELCO, it typically responds with a CALL_PROCEEDING and CONNECT message. Allowing an ALERTING message replaces the CALL_PROCEEDING message.

Use the ALERTING response message to increase the time-out length (from the Telco’s perspective) and allow the network side more time to answer a call.

The ALERTING message is in accordance with the Q.931 standard.

Any changes made will take effect immediately.