Digicom S.p.A. VoiceGATE Manual rev.2.0
Pag. 14
Supplementary Services
The information concerning the reading and the voice supplementary service setup, according
the H.450 standard, are displayed in this window.
You will find here a brief description
of the various supplementary
services.
For almost all the supplementary
services it is necessary to hold on a
call (H.450.4 service enabled).
This operation is carried out
through the “R” key or “Flash” key
with analog phones; in case of
ISDN phones there can be different
modes: Hold Key, or through a
proper configuration menu
(example Mirò phone of Telecom
Italia).
Note: in the description of the
services the R/Flash key will be
described with (R).
H.450.2 Call Transfer
The H.450.2 service allows to manage the call transfer.
During the conversation, by pressing (R) you can put on hold a call and activate a second call.
At this point by pressing R4 (R key + 4 key on the phone) the communication will inetrrupt
and the on hold call will be put in contact with the second call.
H.450.3 Supplementary Services
H.450.3 services allow the user to divert the incoming calls to another number.
4 types of service are available:
• CFU (Call Forwarding
Unconditional):
calls addressed to the user requiring the service are always
forwarded.
• CFB (Call Forwarding
Busy):
calls are forwarded only if the user is busy.
Note: the user is busy only if he has made a call to another
user. Then, if the receiver is up, the number is free, as no
info on the status change has been sent to the Gatekeeper
yet.
• CFNR (Call Forwarding
No Reply):
calls are forwarded only if the user requiring the service is
free but does not answer within the time fixed in the CNFR
Timeout field (15 sec.)
• CD (Call Deflection): le chiamate sono deviate solo se l’utente che richiede il
servizio risulta libero ma esplicitamente redirige le chiamata
(solo ISDN).
In the field telephone number 1 and 2 it must be inserted the number to forward the call.