ATA-171/172/171P/171M (ATA-S1/S2/P/M)
User’s Guide
42
3.13.9 (Call Transfer Operation)
Blind Transfer (Unconditional Transfer)
B calls A, A and B establishes a connection and during the conversation, A performs a call
transfer to a third party. Firstly, A holds B’s conversation channel, presses #510# then keys
in the number of the third party. After that, A presses the hash symbol “#” to initiate the call
transfer to the third party. Note: For 171M, this will only work when transferring a call from IP to IP.
Attendant Transfer
B calls A, A and B establishes a connection and during the conversation, A performs a call
transfer to a third party. Firstly, A holds B’s conversation channel, presses #511# then keys
in the number of the third party. After that, A presses the hash symbol “#” to initiate the call
transfer to the third party C. C accepts the incoming call and establishes a conversation
channel by answering the incoming ring tone, when A hangs up during the conversation with
C, the call is transferred where B and C will be in the same conversation channel, allowing
them to talk to each other. Note: For 171M, if the transfer is performed from IP to PSTN, then the
command used is #514#. If the call is performed from PSTN to IP, no access code is needed, when flash
is pressed on the phone set connected to the ATA, the original caller will hear a dial tone provided by IP
and continue the dialing process.
3.13.10 3-way (Conference)
B calls A, A and B establishes a connection and during the conversation, A would like to add
another third party to the conversation. A holds the conversation channel with B, presses
#512# then keys in the number of the third party. After that, A presses the hash symbol “#”
to initiate the call to the third party C. Once C accepts the incoming call, A will then press the
function button “flash” to enable the 3-way calling mode, where all three parties can now talk to
one another.
3.13.11 (Call Waiting/Answering a Call on Waiting)
During the conversation between A and B, another third party C calls A, which A will notice from the
call waiting tone that can be heard from A’s side of the conversation channel. A will then hold B on
standby, while switching to a different line in order to communicate with C. If B is still on hold, and
A would like to talk to B again, A can release the hold off B and continue the original conversation.
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