Refer Not Converted To Invite

(Doc ID 2406363.1)

Last updated on JUNE 05, 2018

Applies to:

Acme Packet 1100 - Version E-Cz7.2.0 and later
Information in this document applies to any platform.

Symptoms

SBC is selecting a wrong session-agent as origin of the traffic.

User created a new session-agent with the following information:

session-agent
hostname HS1
ip-address 10.100.10.100
port 5061
transport-method StaticTLS
realm-id realmBosch
refer-call-transfer disabled

But Refer messages were failing. In the traces we saw that the Refer messages were being forwarded to the next-hop instead of being converted to Invite messages. These calls were originated in a different session-agent with the following configuration:


session-agent
hostname HS2
ip-address 10.100.10.100
port 5060
transport-method UDP
realm-id realmBosch
refer-call-transfer enabled

It seems the SBC identified the wrong SA as origin of the call even though they have different port and transport protocol. After restoring the old configuration (without the new SA) the SBC started to convert the Refer to Invite again.

Changes

 

Cause

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