I have the 3300v without any voip cards installed.
I dont seem to have any options to setup voip.

I have 2 wan ports connected to 1 x leased line with static public IP and 1 x Broadband with local ip to another router.

I have a Sip server hosted on the internet and am trying to connect to it from within the local network server by the 3300.

I have load balancing turned on with 90% of load going over the broadband.
I have a static rule that any connections to the SIP Server IP go over the leased line.

I am having major issues with phones not registering or when they do register they dont stay registered.

Can anyone help with this?
I cannot seem to find where to turn sip_alg off if this router even has it.

Regards

I'm not familiar with this model but I turned off sip_alg on mine by connecting to the router via command line and issuing command:

sys sip_alg 0

You can use command: > sys sip_alg ?

.. that will display the current status of sip_alg

May the force be with you ... always.

This just comes up with invalid input command.

Regards