Introduction To Call Services; Call Waiting; Call Hold; Call Forwarding - 3Com MSR 50 Series Configuration Manual

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Introduction to Call
Services

Call Waiting

Call Hold

Call Forwarding

C S
ALL ERVICES
More and more VoIP-based services are demanded as voice application
environments expand. On basis of basic calls, new features are implemented to
meet different application requirements of VoIP users. So far, the new features
include:
"Call Waiting" on page 2425
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"Call Hold" on page 2425
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"Call Forwarding" on page 2425
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"Call Transfer" on page 2426
■
"Call Backup" on page 2426
■
"Hunt Group" on page 2426
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"Call Barring" on page 2426
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If User C calls User A who is already engaged in a call with User B, the new call will
not be rejected because the line is busy. Just like a normal call, User C will hear
ringback tones, while User A will hear call waiting tones which remind that a call is
waiting on the line.
If necessary, User A can answer the new call by pressing the flash hook. In this
case, User B is held.
Or User A can hang up to end the call with user B. In this case, User A is
immediately alerted and can pick up the phone to answer the call originated by
User C (the waiting call).
If User A in a conversation with User B presses the flash hook, the media channel
at User B is temporarily shut down and goes into the silent state. The system plays
silent tones or dial tones to User A, depending on the configuration. (The system
first plays dial tones and waits for the user to dial. If the user fails to dial within a
period of time, the system stops playing dial tones and the line stays on hold.) User
A can resume the call with User B by pressing the flash hook again.
After pressing the flash hook, User A hears dial tones and can initiate a new call.
The setup flow for the new call is completely the same as the one for ordinary
calls.
After the terminating system receives a session request, the called party cannot
answer the call for some reason. In this case, the terminating system notifies in a
response the originating system of the forwarded-to number so that the
originating system can re-initiate a session request to the new destination.
C
ONFIGURATION