SIP Call Redirection
The third in a series of mini tutorials presented by...
Motivation:
It is 10pm. Joe is just about to join a four hour conference call. That means he will not be able to accept incoming calls. His girlfriend Lena is traveling in far away Europe. He knows she is about to call any moment from a pay phone using her calling card. He wants to let her know about the reason why he may miss her call. He knows that once her call comes in she will get redirected to his voice mail. If he could only have a special greeting playing for her letting her know the reason for his unavailability. At the same time his normal voice mail greeting should be playing for all other incoming calls.
Feature:
Activation time
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Joe accesses his SIP based voice mail server. This is done either via web based user friendly interface (AKA web IVR) or via normal voice IVR. He records a special greeting for Lena and instructs the voice mail to play it only when the incoming call is identified as coming from her calling card (prefix of 402156).
Calling time
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Incoming calls From Lena are returned a special greeting from the voice mail server. All other calls are returned the normal greeting.
How this can be accomplished:
The following scheme illustrates how this can be accomplished.
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