Nortel ICS 6.1, Manual

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/ Answering calls
Compact ICS 6.1 System Coordinator Guide P0603544 02
Sorting calls by distinctive ring patterns
When lines are configured on your system, they can be assigned one of four
distinctive ring patterns (DRP). The default for all telephones and lines is
None, which is the lowest priority.
Call ringing: When multiple calls are presented to the telephone, the call
with the highest priority DRP setting will be the call that rings at the
telephone.
Call answering: When multiple calls are presented to a telephone, and the
user picks up the handset, the call with the highest priority DRP setting is
the call that is presented.
Note: External calls always have a higher priority than internal calls.
Note: If the ring type is changed on a telephone after the DRPs are set on
the line, the line DRPs are overwritten by the telephone settings. If
the DRPs are set for a line after telephone programming, then the
telephone ring programming is overridden by the line DRP program.
If the call is to a Hunt group, and the Hunt group DRP is higher than
the line DRP, the Hunt group DRP will take precedence within the
Hunt group.
Answering calls at a prime telephone
Each line in a Norstar system can be assigned a prime telephone. Calls not
answered at their normal destinations are transferred to the prime
telephone. The prime telephone is usually the telephone assigned to the
attendant. The installer or customer service representative programs a
prime telephone for a line.
Three beeps descending in
tone You are receiving a priority call.