FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
ACARIMO
Staff
Staff
Article Id 361799
Description This article describes how to overcome a situation where a SIP call cannot be established and the destination party returns a SIP message containing 'Status: 302 Moved Temporarily'.
Scope FortiGate.
Solution

If a call cannot be established and the destination phone returns a SIP signaling message containing the SIP status code 302, which stands for 'Moved Temporarily', it is an indication that the remote phone has the DND (Do Not Disturb) feature enabled.

 

Packet capture in Wireshark will show on the phone SIP response:

 sip302.png

 

The SIP/SDP message will contain the following line:

 

Status-Line: SIP/2.0 302 Moved Temporarily

 

The issue is not a FortiGate issue: it is a phone setting issue. To allow the phone to receive calls, disable the DND function.

 

Related article:

Technical Tip: VoIP and SIP configuration and troubleshooting resource lists