| Description |
This article describes why FortiVoice rejecst SIP INVITE with Status-Line: SIP/2.0 603 Decline.
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| Scope | FortiVoice. |
| Solution |
Cross-check the configuration under Call Routing -> Inbound -> DID Mapping -> Number Mapping.
This is mainly due to a configuration mismatch for example XXXX9020 is mapped to extension 021 instead of extension 020. |
