User`s manual

Mediant 1000
H.323 User's Manual 258 Document #: LTRT-83401
8.1.3 Call Transfer
There are two types of call transfers:
 Consultation Transfer (REFER and REPLACES)
 Blind Transfer (REFER)
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 and puts B on-hold (party B hears a hold tone)
 A dials C.
 After A completes dialing C, A can perform the transfer by onhook of the A phone.
 After the transfer is completed, B and C parties are engaged in a call.
The transfer can be initiated at any of the following stages of the call between A to C:
 Just after completing dialing C phone number - Transfer from setup.
 While hearing Ringback – Transfer from alert.
 While speaking to C – Transfer from active.
Blind transfer is performed after we have a call between A and B, and party A decides to
transfer the call to C immediately without speaking with C.
The result of the transfer is a call between B and C (just like consultation transfer only
skipping the consultation stage).
8.1.4 Call Forward
Five forms of call forward are supported:
 Immediate: Any incoming call is forwarded immediately and unconditionally.
 Busy: Incoming call is forwarded if the endpoint is busy.
 No Reply: The incoming call is forwarded if it isn't answered for a specified time.
 On Busy or No Reply: Forward incoming calls when the port is busy or when calls
are not answered after a specified time.
 Do Not Disturb: Immediately rejects incoming calls. Upon receiving a Do Not Disturb
call, a 603 Decline SIP response is sent.
Three forms of forwarding parties are available:
 Served party: the party that is configured to forward the call – Mediant 1000/FXS.
 Originating party: the party that initiated the first call – Mediant 1000/FXS or FXO.
 Diverted party: the new destination of the forwarded call – Mediant 1000/FXS or
FXO.
The served party (Mediant 1000/FXS) can be configured through the Web browser (refer to
Section 5.5.7.4 on page 117) or via ini file to activate one of the call forward modes per
each of the gateway's endpoint, including forwarded destination phone number and ‘no
answer’ timeout for ‘No reply’ forward.