R&S M3SR 4100 Series Operating Manual page 650

M3SR Series 4100
The radio registers itself at the GWR after the preset page has been changed. The GWR
sends a SIP registration for this CNR to the PBX. This allows the PBX to route calls to this
CNR using the correct and current GWR address.
This scenario requires SIP clients to register with the SIP PBX.
5.104
Voice over IP (VoIP)
Operating Manual 6175.4760.02 – 01