DT390
15.6 IP calls
IP calls are internal calls sent through an internal data network (LAN or WAN)
and the transfer of data and voice is made on the same line. If you are
connected to an internal data network, the IP connection is made automatically.
To minimize the traffic on the network, the speech quality is decreased.
If the speech quality is not acceptable, you can disconnect the IP call and switch
to a non-IP call (Alternative network). The switch from the IP net to the n on-IP
net is made during the call, so the call does not have to be disconnected.
If you want to switch to a non-IP net during the call:
1. Press R
2. Press *6 1*.
During the procedure the other party is put on hold. When the procedure
is ready, you will receive a special ringing tone and the call is resumed in
the non-IP net.
Note: A switch to a non-IP call can only be performed if the original call is
an IP call, otherwise you will receive a blocking tone.
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1424-EN LZT 103 091 Uen A1 2008-10-27
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