Problems with ARRIS DG1670 Modem

[goosta]

I recently changed out my cable modem to an ARRIS DG1670 to get better TWC speeds in my area. The problem is I can receive calls but outgoing calls don't work. They either don't go through or there is no audio.

I disabled SIP ALG on the modem, but that didn't help. Anyone have experience with this modem and have any idea on what I can do to fix it?

Thank you!

[Jackson]

Well until someone more knowable shows up maybe you can try this from from the Obi FAQ.

What ports should I keep open on my router/firewall?

In order for your OBi to be able to send packets w/o interruption, please configure your router as follows:

Allow Outgoing:
TCP Ports: 6800, 5222, 5223
UDP Ports: 5060, 5061, 10000 to 11000, 16600 to 16998, 19305

Allow Incoming on UDP Port: 10000