Spiro

The NOTIFY seems to be coming back on a different port 3953 ? is this relevant ?

I'm seeing this:

Cheers guys, I'll look for that. Am I specifically looking for SUBSCRIBE or NOTIFY entries which end with 'transport=udp' ?

We don't really want to have to put in a second line just for the VoIP telephones.

Need to have Zywall USG 110 in place though as we use this for IPSEC tunnel to head office.

We took the Zywall USG 110 out and reinstalled our old router and got that going and then the BLF works OK, just seems that something on Zywall USG 110 is not allowing it.

Hi Jannis, the VoIP server is in cloud on internet. We have two installations, one at head office where telephones go out through separate gateway and not their Zywall USG 110. But at warehouse we only have one line (fibre to premises) which feeds our Zywall USG 110. Head office telephones BLF is working, they connect to…