System Functions and Features as of I7.9
190 Call routing
syd-0200/3.0 – I7.9 – 11.2009
Manual alternative Routing
In some situations the LCR function cannot recognize that the primary network
provider is not available (for example if the network provider answers the call with
a voice message). The user then has the possibility to dial via the alternative net-
work provider manually. To do so he interrupts the connection and dials *90. The
number is then redialled in the same way as with a last-number redial but this time
via the alternative network provider.
If the user routes a call via the alternative network provider manually, no event
message will be generated.
If users are not to be authorized to dial the alternative network provider them-
selves, *90 should be barred in the internal digit barring.
Manual alternative routing also works if automatic alternative routing is not acti-
vated.
5. 6. 4. 3 Restricted scope of performance by a Network Pro-
vider
Not all network providers offers every service (voice, fax, data traffic, etc.) If for ex-
ample the network provider table contains network providers that can only trans-
fer voice service, users will have to manually force the data service-compatible net-
work provider they want when setting up data connections (see "Bypassing LCR
manually (Forced Routing)", page 194).
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