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| In this scenario, Bob wants all calls forwarded to the PSTN: |
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Alice calls Bob via an outbound proxy server: (1)
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The proxy server rewrites the Request URI, and forwards the INVITE to a Gateway: (2)
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The session is established between Alice and Bob in the PSTN: (3) to (5)
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Alice terminates the session with Bob: (6) to (7)
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| Details of messaging behind the Gateway are not shown. |
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| Call Forwarding Unconditional |
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| Call Forwarding Unconditional |
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| Call Forwarding Unconditional |
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| Call Forwarding Unconditional |
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| Call Forwarding Unconditional |
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| Call Forwarding Unconditional |
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| Call Forwarding Unconditional |
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