IP LDK-20 Programming Manual System Feature
187
2.16.3 Net Transfer
Description
A station user of the networking system can use the net transfer service. The net transfer is the call
transfer service that is using the net call. It can transfer any kind of call to a station in other systems by
pressing
[TRANS/PGM]
button and dialing the station number. The executive operation of net transfer
is the same as the call transfer service within the same system. And it also supports the two kinds of
transfer modes; screened transfer mode and unscreened transfer mode (see Ref.1)
Engineering notice)
There are defined two kinds of standard net transfer signaling method in QSIG and H.450 protocol
specification; TRANSFER BY JOIN and TRANSFER BY REROUTING. The main difference is how the
connecting path among the transferring, transferred, transferred-to stations controls.
The term of transferred station is the call originator. In the figure 2.16.5, the outside caller is the
transferred station.
The term of transferred-to station is the new destination of the transferred call. In the figure 2.16.5, the
station 202 is the transferred-to station.
And the term of transferring station is a station transferring a call with transferred station, to
transferred-to station. In the figure 2.16.5, the station 100 is the transferring station.
In case of TRANSFER BY JOIN, additional connecting path will be needed to transfer the call to
another station. In case of TRANSFER BY REROUTING, new connecting path is used to transfer the
call and old connecting path of transferring station will be cleared.
IP LDK system supports both TRANSFER BY JOIN and TRANSFER BY REROUTING. The signaling
method can be selected by ADMIN program 321 – FLEX 1.
The figure 2.16.5 describes the unscreened net transfer operation on the networking connection
environment. At the first step, the outside caller dials the telephone number of station 100. And station
100 is receiving the incoming ring at the second step. At the third step, station 100 answers and it is
requested the call transfer to the station 202 that is located the another networking system. To
execute the net transfer, the station 100 presses
[TRANS/PGM]
button and dials ‘202’. After hearing
ring back tone, station 100 goes idle. Station 202 receives the net transfer ring and answers at the
fifth step.
Summary of Contents for IP LDK-20
Page 202: ...IP LDK 20 Programming Manual System Feature 186 ...
Page 211: ...IP LDK 20 Programming Manual System Feature 195 ...
Page 213: ...IP LDK 20 Programming Manual System Feature 197 ...
Page 472: ...IP LDK 20 Programming Manual ADMIN Programming 456 PROCEDURE 320 Value 2 Digit ...
Page 514: ...IP LDK 20 Programming Manual ADMIN Programming 498 ...