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Analogue and
ISDN-Phones
Call waiting / Call Back when free
Request Ringback when free
h
P Z
Q
P r
P S19
Lift receiver
dial internal
number
busy tone
Enquiry
Request
Ringback
when free
An extension already on a call will hear call waiting tone if called by another extension or
outside call. If the extension does not answer your call then you can request ringback when
free.
Summary of Contents for AS 181 plus
Page 1: ...Manual Basic Line AS 181 ISDN PBX System...
Page 24: ...1 2 System Telephones ST 25 DECT 30 ST 30...
Page 119: ...1 97 System Telephones ST 25 DECT 30 ST 30...
Page 120: ...2 2 Analogue and ISDN Phones...
Page 169: ...2 51 Analogue and ISDN Phones...
Page 170: ...3 2 Programming your System ST 25 DECT 30 ST 30...
Page 190: ...Communication via PC PC 2...
Page 199: ...Communication via PC PC 11...
Page 215: ...S 5 Index...
Page 216: ...S 6 Index...
Page 218: ...S 8 Index Declaration of Conformity...
Page 219: ...S 9 Index...