AudioCodes MediaPack 114 Instrukcja Użytkownika Pobierz pdf (Strona 359)

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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AudioCodes MediaPack 114 Instrukcja Użytkownika Strona 359