AudioCodes MediaPack 114 Manual de usuario Pagina 359

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Version 5.6 359 November 2008
SIP User's Manual 7. IP Telephony Capabilities
The previous flowchart describes the following "double" call hold scenario:
1. A calls B and establishes a voice path.
2. A places B on hold; A hears a Dial tone and B hears a Held tone.
3. A calls C and establishes a voice path.
4. B places A on hold; B hears a Dial tone.
5. B calls D and establishes a voice path.
6. A ends call with C; A hears a Held tone.
7. B ends call with D.
8. B retrieves call with A.
Notes:
If a party that is placed on hold (e.g., B in the above figure) is called by
another party (e.g., D), then the on-hold party receives a Call Waiting
tone instead of the Held tone.
While in a Double Hold state, placing the phone on-hook disconnects
both calls (i.e. call transfer is not performed).
7.14.2 Consultation / Alternate
The consultation feature is relevant only for the holding party (applicable only to the
FXS module).
After holding a call (by pressing hook-flash), the holding party hears a dial tone and
can now initiate a new call, which is called a consultation call.
While hearing a dial tone, or when dialing to the new destination (before dialing is
complete), the user can retrieve the held call by pressing hook-flash.
The held call can’t be retrieved while Ringback tone is heard.
After the consultation call is connected, the user can switch between the held and
active call by pressing hook-flash.
7.14.3 Call Transfer
There are two types of call transfers:
Consultation Transfer (REFER and REPLACES):
The common way to perform a consultation transfer is as follows:
In the transfer scenario there are three parties: Party A = transferring, Party B =
transferred, Party C = transferred to.
A Calls B.
B answers.
A presses the hook-flash button and places B on-hold (party B hears a hold tone).
A dials C.
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