Call routing
187
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
Category 3: Satellite in offline mode or terminal port inactive
• The required user is on a satellite that is currently in offline mode.
• An originally configured terminal port is inactive because an interface card is not fit-
ted or because of a hardware fault.
Examples of sensible redirection destinations:
User’s external call number (if the satellite also has access to the public network),
user’s mobile call number, general voice mailbox, switching centre.
Note:
If the required user is technically obtainable but the call is not answered, two redirection desti-
nations can be also be configured for internal and external calls (see "Default call forwarding
per user", page 178).
Other properties of redirection destinations when unobtainable
• If the caller is forwarded to a destination that is also unobtainable, he obtains the
busy tone.
• If the redirection destination is busy, the caller obtains the busy tone.
• If a forwarding to the originally dialled user has been configured at the redirection
destination (thereby creating a loop), the forwarding is not carried out and the termi-
nal at the first redirection destination rings instead.
• If an external caller is forwarded to an external destination, the settings for enabling
exchange-to-exchange traffic need to be observed.
• If the user of IP terminal cannot reach the user he has dialled because there are no
VoIP capacities available on his side, the redirection destinations for unobtainable
are not applied.
• A call to a user who is redirected to a destination if unobtainable always triggers an
entry in the user’s unanswered call list, even if the call is answered at the redirection
destination.
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