Q.931 cause code 0x11 (User Busy) will be received from the B-side of the call or ‘486 Busy Here’ in case of SIP, which will result into cause code 0x11 or ‘486 Busy Here’ being propagated to the A-side of the call
The cause codes logged in the RADIUS records will be set to 0x11 for both sides of the call
The RTP IP address of the B-side (In case of egress SIP or H.323) will be logged as ‘0.0.0.0’ since the call was not answered and the IMG is unaware of the RTP stream destination IP address.