Filter
Top Products
Features 71
1)
HOLD is not a standard supplementary service for Euro-ISDN PRI, nevertheless some PBXs
support call hold and retrieve.
2)
HOLD is not defined in Q-Sig but corresponding procedures are available.
3)
Call transfer is only possible if path replacement works.
4)
In a Q-Sig environment, the feature is also called ‘Simple Dialog’.
Generic functional
procedures (basis for
supplementary services in
Q-Sig environment)
•
Common information •
Redirected number
translation from Q-Sig to
Q.931
•
Escape message types •
(5ESS Custom
only)
Call Appearance/Call
Handling (CACH) plus
configuration
•
Feature activators plus
configuration
•
(5ESS NI + DMS
100 only)
Network display
conversion/treatment
•
Message waiting • • • •
CCBS (call completion to
busy subscriber)
••
CCNR (call completion on
no reply)
••
Supplementary services
with switch type
Euro-ISDN
(ETSI) PRI
Euro-ISDN
(ETSI) BRI Q-Sig
5ESS Custom
(AT&T),
5ESS NI
(Lucent/Avaya),
DMS 100