XONTEL Plus PBX, Руководство пользователя

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3.4.2
Attended Transfer
Attended transfer is a call transfer in which the transferring party connects the call to a third party after he confirms
that the third party agrees to answer the call.
Example: A gives a call to B and B wants to attended transfer the call to C. Operation instructions are as follows:
1. A dials the extension number of B;
2. The extension of B rings, and B picks up the phone. Then A and B go into conversation;
3. B presses *2 to trigger attended transfer (at the same time, A can hear a waiting tone). Then B dials the extension
number of C;
4. Then one of the following situations will happen:
a. If the extension of C cannot be reached because the dialing/call has timed out, C rejects the call or C is
busy, B will automatically switch to the conversation with A.
b. The extension of C rings (at the same time, B can hear a ringback tone). If B hangs up the phone at this
moment, A will continue to hear the waiting tone. Then if A also hangs up the phone, the extension of C
will continue to ring. If C picks up the phone at this moment, the call will end directly.
c. The extension of C rings and then C picks up the phone. C and B go into conversation, and A will
continue to hear a waiting tone. If it’s B that hangs up the phone at this moment, C and A go into
conversation. If it’s C that hangs up the phone, B and A go into conversation.
3.5 Three-way Conference
When the SIP extension of XonTel Plus is the caller:
Step1. A dials the number of B and B picks up the phone, and then A and B go into conversation;
Step2. A presses the flash hook, and then dial the number of C after hearing the dialing tone.
Step3. C pick up the phone, and A and C go into conversation and meanwhile the call between A and B is kept
holding.
Step4. Then, if A presses the flash hook and dials 1, the conversation will switch back to A and B; if A presses the
flash hook and dial 2 , the conversation will switch to A and C; if A presses the flash hook and dial 3, the conversation
will switch to A , B and C (three-party conversation).
When the SIP extension of XonTel Plus is the callee:
Step1. B places a call to A, and A picks up the phone after the phone rings. And then C also gives a call to A (at the
same time, A can hear a waiting tone).
Step2. If A presses the flash hook, A and C go into conversation and meanwhile the call between A and B is kept
holding.
After that, if A dials 1, the conversation will switch back to A and B; if A dial 2 , the conversation will switch to A and
C; if A dials 3, the conversation will switch to A , B and C (three-party conversation).
Step2 (optional). When C is calling A and B hands up the phone during the process, A and C will automatically go into
conversation.