Gigaset C530 IP Manual page 125

Gigaset C530 IP / LUG - USA en / A31008-XXXXX-XXXX-X-XX / appendix.fm / 25.03.2015
2. Setting port forwarding on the router
To ensure that your specified SIP and RTP port numbers are used on the WAN interface with the
public IP address, you must define port forwarding rules for the SIP and RTP ports on the router.
To define port forwarding on the router, proceed as follows:
The terms used below may vary from router to router.
To release a port, you must enter the following details (example):
Protocol
UDP
UDP
Protocol
Enter UDP as the protocol to be used.
Public port
Port number/port number range on the WAN interface
Local port
The SIP and RTP port numbers set on the phone.
In the new firmware version for Gigaset VoIP telephones, you can set a RTP port range. You
must then also define corresponding port forwarding for this range.
Local host (IP)
Local IP address of your phone in the LAN. You can see the phone's current IP address in the
handset display by pressing the paging key on the base.
To enable the router to perform this port forwarding, the DHCP settings of the router must
ensure that the phone is always assigned the same local IP address, i.e. the DHCP does not
change the IP address assigned to the phone during operation. Alternatively, you can assign a
fixed (static) IP address to the phone. However, you must ensure that this IP address is not within
the address range reserved for DHCP and is not assigned to any other LAN participant.
124
Public port
49060
49004 – 49010
Local port Local host (IP)
49060 192.168.2.10
49004 – 49010 192.168.2.10
for SIP
for RTP