How to Configure Motorola Netopia 3000 port forwarding, SIP ALG
First we need configure Port forwarding:
Login to WEB GUI: http://192.168.1.254
Configure -> Advanced -> Pinholes for SIP UDP transport Protocol: UDP External: Port Start 5060 External: Port Start 5080 Internal: IP Address: Internal: port 5060
for SIP TCP transport Protocol: TCP External: Port Start 5060 External: Port Start 5080 Internal: IP Address: Internal: port 5060
for RTP Protocol: UPD External: Port Start 10000 External: Port Start 20000 Internal: IP Address: 10000 Internal: port 5060
Then disable SIP ALG: Telnet 192.168.1.254 At this prompt, type "config" (without quotes) and press ENTER type "set ip sip-passthrough off" and press ENTER again Now type "quit" and press ENTER press "y" for save configuration, then restart router