User manual

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3) Earphone Hang up
When use Earphone calling, Press the soft button “headset” to hang up.
4) Hang up one line call
When 2 lines call simultaneous, press soft button “SWIT” to choose the line
which you want to hang up, then press soft button “#” to end the call. In the
mean time, it will automatic switch to another line and continue call. Moreover,
user can redial-up or accept the second call.
Hang up with “#” is invalidation when only one line call.
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¾ Blind Transfer
User A.B.C, assume B is 5520 IP phone:
1) When A Calls B and B receives
2) B presses soft button “Xfer”
3) B dials C’s number.
4) After dialing C, B Presses soft button “Bxfr” (or wait for a few seconds after
dial number), then the call will be transfered to C.
5) When C’s phone ring, B will be hung up , the LCD on B’s Phone shows “Pls.
Hang Up”.
6) C receives the call, start to talk with A.
SIP lines are not available for choosing when call transfer.
¾ Attended Transfer
User A.B.C, assume B is 5520 Ip phone:
1) When A Calls B and B receives
2) B presses soft button “Xfer”.
3) B dials C’s number and C receives to talk with B.
4) B can press "Swit" to switch the call between A and C.
5) B Presses soft button “Xfer”, then transfers the A's call to C.
6) Meanwhile The LCD on B’s phone shows “Call Ended”.
Remarks:
To carry out this function, IP Phone must work with Call waiting and call transfer
function; meanwhile Sip server must support RFC3515.
¾ Alert Transfer