User manual

AT-620 User Manual
ATCOM TECHNOLOGY CO., LIMITED
Remarks:
SIP lines are not available for choosing when call transfer.
¾ Attended Transfer
User A.B.C, assume B is AT-620 Ip phone
1) When A Calls B and B receives
2) B presses soft button “Xfer” when A is calling.
3) B dials C’s number.
4) After dialing C, B Presses soft button “Bxfe”, then transfers the call to C.
5) C receives the phone, starts the call with A.
6) B presses soft button ”XFER” directly starts to talk with A, Meanwhile The
LCD on B’s phone shows “pls hang up”.
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
User A.B.C, assume B is AT-620 Ip phone
1) When A Calls B with B receives.
2) B presses soft button “Xfer” when A is calling.
3) B dials C’s number.
4) After dialing C, B Presses soft button “Bxfe”, then transfers to C.
5) When C’s Phone ring, B presses soft button “XFER” directly starts to talk with
A, Meanwhile The LCD on B’s phone shows “pls hang up”
6) C receives the phone, starts to talk to A.
Remarks:
To carry out this function, IP Phone must work with Call waiting and call transfer
function; meanwhile Sip server must support RFC3515
7、 Call Hold
User can hold the current call by pressing soft button “Hold”. And by
pressing soft button “Hold” again, user can get back to the previous call. In
3-way conference call mode, user can also press this button to hold 3-way
conference call, and if you press it again, user can go back to 3-way
conference mode.
8、 3-Way Conference Calls
Assume B is AT-620 phone among user A,B and C.
A calls B and talks with B through VoIP.