FAQ/Can I establish pure IP calls between snom Phones

Answer

Yes, configure the following settings on the phone´s web interface:

Filter Packets from Registrar --> "off"
Listen on port 5060 for TCP --> "on"
Network Identity Port --> 5060

Rebooting every device should enable the phones for pure IP calls. To call another IP address you have to enter it in standard format. For example: 192.168.xxx.xxx

It was reported that calling from some 3rd party softphones might require the following:

sip:@ip address=""

Note: Your phone does not provide any dialtone before call establishment.