beautypg.com

Siemens 70isdn User Manual

Page 75

background image

Convenient and secure telephone communication

63

kap09.fm5

Profiset 70isdn, GB: A30853-X300-B501-3-7619

20.5.99

CENTREX features

CENTREX (Central Office Exchange) refers to virtual ISDN

PBXs. Although the public ISDN network is used as the

line network in this case, the usual PBX features are sup-

ported.

CENTREX features can only be accessed if you are a CEN-

TREX group member. If you are not a CENTREX group

member, the features described here do not apply.

Message Waiting Indication (MWI)

Profiset 70isdn signals the arrival of CENTREX

voicemails. In order to use this feature, a programmable

key must be assigned the function "71=MWI" (➔ page

42). This programs the key with the directory number of

the mailbox to which you have access.

When a voicemail is received, the LED assigned to the

"MWI" feature key flashes.

Calling Name Identification (CNI)

For incoming calls from other CENTREX users, Profiset

70isdn displays both the name and directory number of

the caller. The directory number is displayed first, fol-

lowed by the name.

A maximum of 24 characters can be displayed, additional

characters are not displayed if the name exceeds this

length.

The name is also entered into the call list (➔ page 51).

Distinctive ringing

Profiset 70isdn uses different call signals for external calls

and internal CENTREX calls. The following default call sig-

nals are used:

External calls

Internal calls

Press the "MWI" key. The directory number of the

mailbox is dialed. The voicemails are then played back.

MWI

Tone (1 second)

Pause (4 seconds)

etc.

Tone repeated twice (0.3 seconds each)

at 0.4-second intervals

Pause (4 seconds)

etc.