Nortel Networks Modular ICS 4.0 manual Overflow call routing, M7100 telephone

194 / General System features

Line pools

A line pool allows each telephone access to external lines from a group (or pool) of external lines. You can access such lines by pressing an intercom button and entering a line pool access code or by pressing a memory button programmed with the line pool feature code and a line pool access code.

Overflow call routing

If a call comes in for a target line that is busy, Norstar routes the call to the prime telephone for that target line. If there is no prime telephone assigned to the target line or if a call cannot be directed to a target line, the call goes to the prime telephone for the external line used.

Overflow routing for incoming calls is used with the Routing Service programmed by your installer. A Service must be active for overflow routing to be in effect. Overflow routing is not available in normal service.

Tips - When you make a call and the programmed route is busy, you hear the expensive route warning tone and see a display indicating that an expensive route is being used. To avoid using the normal, expensive route, release your call.

Because overflow routing directs calls using different line pools, a call may be affected by different line filters when it is handled by overflow routing.

M7100 telephone

Because the M7100 telephone does not have line buttons, it sometimes works slightly differently from other Norstar telephones. Where other telephones can require that you select a line button to answer a call, on the M7100 telephone you simply pick up the receiver. Where other telephones require

Modular ICS 4.0 System Coordinator Guide P0881591 Issue 01