Call transfer, Blind transfer, Attended transfer – Grandstream HT503 User Manual User Manual
Page 23: Way conferencing

FIRMWARE VERSION 1.0.14.1
HT503 USER MANUAL
Page 21 of 64
CALL TRANSFER
The HT503 supports both blind transfer and attended transfer.
BLIND TRANSFER
This function is applicable using the FXS port for VoIP calls only. Assume that parties
A
and
B
are in
conversation. Party A wants to Blind Transfer Party B to C:
3.
A
presses FLASH on the analog phone to hear the dial tone.
4. Then
A
dials *87, then
dials C’s number, and then presses #
5.
A
can hang up.
NOTE:
“Enable Call Feature” has to be set to “Yes” in web configuration page.
ATTENDED TRANSFER
This function is applicable on the FXS port for VoIP calls only. Assume that parties
A
and
B
are in
conversation. Party A wants to Attend Transfer Party B to C:
1.
A
presses FLASH on the analog phone to get a dial tone;
2.
A
then dial C’s number followed by #.
3. If C answers the call,
A
and C are in conversation. Then
A
can hang up to complete transfer.
4. If C does not answer the call,
A
can press “flash” back to talk to
B
.
NOTE: When Attended Transfer fails and A hangs up, the HT503 will ring user A back again to remind A
that party B is still on the call. Party A can pick up the phone to resume a conversation with party B.
3-WAY CONFERENCING
The HT503 supports Bellcore Style 3-way conferencing.
Assume that parties
A
and
B
are in conversation. Party
A
(using the HT503) wants to bring C into a 3-
way conference:
1.
A
presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial
tone.