USG 60 NAT problems on port 5060 udp (sip)

BlueTeam

Good morning,

I cannot correctly configure nat on USG 60 on port 5060 udp.

Specifically I need to configure the nat from Wan1 (public ip) port 5060 upd to lan 192.168.1.201 port 5060 udp.

Other nat configurations (smtp or pop3) work fine.

The SIP ALG service (port 5060 udp) of the USG60 is disabled.

Waiting for your reply

Greetings

Thank you

mMontana

What about firewall rules?

BlueTeam

The firewall rules are configured to accept and log connections on port 5060 udp

mMontana

Thanks for the answer. The are log entries present? Would you please share the NAT and firewall rules you created?
AFAIK, SIP uses 5060 port and UDP other ports for media streams. 3CX, for instance, 9000-10999 for audio/media WAN streams, 7000-8999 for audio/media LAN streams.
Maybe you need to add more services in your NAT and firewall rules configuration?

Zyxel_Stanley

Hi @BlueTeam
VOIP protocol includes SIP and RTP. SIP protocol is for service control and RTP is for voice audio streaming.
So SIP phone must working in both of protocols, then phone call may work correctly.

You may have to describe your environment and traffic direction first for further check.
a. Is there a PBX server behind USG60?
b. Is there a SIP provider offering service to your PBX server? 
c. Does your SIP provider could support over NAT router?
d. Is there any IP phone will registers from Internet to Intra-PBX of USG60?

Dario_MRDigital

Hello, I was looking for a Solution to a Similar Problem: a Dect Antenna in a Remote Site and a PBX in the HeadQuarter: I've configured a Nat in VirtualServer Mode in the HeadQuarter Firewall (an Usg 310) for all the the traffic from the remote Site, anyway the antenna was not able to register itself on the PBX. The only way to resolve (for me) has benn to change the protocol in the antenna configuration, from UDP to TCP.

I'm not sure about he reason, maybe the provider Router stop the UDP traffico, but now the antenna is connected to rhe PBX.