Hi,
I'm running Backfire (10.03.1) on an ARV4520PW and I'd like to use the VoIP functionality, but I have no clue how to do this.
I've got a Sphairon Turbolink IAD 2200 from my provider (Alice/O2) which handles phone calls over IP, likely using SIP.
A guide for the Fritz!Box describes configuring username, password, VCI and VPI in the web interface, how would I do this with OpenWRT?
And is the VoIP functionality even yet supported on my device?