User`s guide

1-6 Preliminary November 23, 1998 MultiVoice Gateway for the MAX— User’s Guide
Introducing MultiVoice Gateway concepts
What is MultiVoice for the MAX?
Figure 1-4 shows an example of a MultiVoice network using overlapping coverage areas. Two
Gateways provide coverage to area code 516. The MultiVoice Access Manager is the
Gatekeeper.
Figure 1-4. Example of a MultiVoice network with overlapping coverage areas
When Caller A dials Caller D, then Caller C dials Caller B, and both dialed phone numbers are
part of the same coverage area, the following events occur:
1 Caller A dials MultiVoice Gateway 1, and enters their PIN authentication (if required) and
Caller D’s phone number.
2 MultiVoice Gateway 1 establishes a session with the Gatekeeper.
3 MultiVoice Gateway 1 forwards the phone number and PIN authentication to the
Gatekeeper.
4 The Gatekeeper attempts to authenticate Caller A and, if successful, identifies all the
MultiVoice Gateways that support the coverage area for Caller D’s phone number.
5 The Gatekeeper then forwards the IP address of MultiVoice Gateway 2 to MultiVoice
Gateway 1.
6 MultiVoice Gateway 1 establishes a session with MultiVoice Gateway 2.
7 MultiVoice Gateway 2 forwards the call request to Caller D.
8 Now, Caller C dials MultiVoice Gateway 1, and their PIN authentication (if required) and
Caller B’s phone number.
9 MultiVoice Gateway 1 establishes a session with the Gatekeeper.
10 MultiVoice Gateway 1 forwards the phone number and PIN authentication to the
Gatekeeper.
11 The Gatekeeper attempts to authenticate Caller C and, if successful, identifies the
MultiVoice Gateways that support the coverage area for Caller B’s phone number.
12 This time the Gatekeeper forwards the IP address of MultiVoice Gateway 3 to MultiVoice
Gateway 1
13 MultiVoice Gateway 1 establishes a session with MultiVoice Gateway 3.
14 MultiVoice Gateway 3 forwards the call request to Caller B.
Area Code
516
PSTN
PSTN
IP network
MultiVoice
Gateway 1
MultiVoice
Gateway 2
Caller A
Gatekeeper
Caller B
Caller C
Area Code
715
MultiVoice
Gateway 3
Caller D