4.2.13
4.2.14
4.2.15
4.2.16
4.2.17
4.2.18
4.2.19
4.2.20
4.2.21
4.2.22
4.2.23
4.2.24
4.2.25
4.3
Groups [3] ............................................................................................................326
4.3.1
4.3.2
4.3.3
Extension Group [3-2] ...........................................................................................330
4.3.4
Call Pickup Group [3-3] .........................................................................................331
4.3.5
Paging Group [3-4]................................................................................................333
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
4.3.11
4.3.12
4.3.13
4.3.14
PS Ring Group [3-9]..............................................................................................358
4.4
Extension [4] .......................................................................................................360
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.4.10
4.4.11
4.4.12
4.4.13
4.5
Optional Device [5] .............................................................................................429
4.5.1
Doorphone [5-1] ....................................................................................................429
4.5.2
External Pager [5-2] ..............................................................................................431
4.5.3
4.5.4
4.6
Feature [6]............................................................................................................436
4.6.1
4.6.2
Feature Guide
9