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2N TELEKOMUNIKACE a.s., www.2n.cz
®
does not answer the call in the VoIP network and so the call is rerouted to its mobile
telephone. Subscriber B does not answer the mobile phone call and is sent a text
announcing that the call from subscriber A has been missed.
"Call forwarding" function
In addition to rerouting calls in the event of absence, the
allo
2N Mobility Extension
®
ws calls to be forwarded within a VoIP network, which brings the services of the SIP
Proxy to a mobile telephone. The description of this function is shown in Fig. 3.
Figure 3:
Call Forwarding Function
In Fig. 3 subscriber A is talking to subscriber B, for whom the
2N Mobility
®
has been permitted. Subscriber A would like to be forwarded to subscriber
Extension
C. For this reason, subscriber B holds the call with A (7* in the default setting ), dials
the number of subscriber C, terminates dialling with the dialling end character (# in the
default setting), notifies subscriber C of the call to be forwarded and hangs up to
forward the call. If subscriber C does not want to talk to subscriber A, subscriber B
terminates the call with C (9# in the default setting) and returns to the call with A.
"Quick call forwarding" function
In Fig. 4 subscriber A is talking to subscriber B, for whom the
2N Mobility
®
has been permitted. Subscriber A would like to be forwarded to subscriber
Extension
C. Subscriber B wants to forward the call without having to talk to subscriber C. So
subscriber B puts the call with A on hold (7* in the default setting), dials the quick
forwarding character (default value #) and dials the telephone number of subscriber C,
terminating the dialling with the dialling end character (default value #). Having
received the dialling end character,
terminates the call between
2N VoiceBlue Next
®
A and B and attempts to make a call between subscribers A and C. Subscriber A then
receives the ring tone.
