This may be a stupid question, but I have spent lots of time fine-tuning the attributes of my setup (dtmf, stun, dial plan, etc.) and I don't really want to mess with them at this point. So while I audition several different ITSPs, is it possible to just go in and surgically change the SIP credentials and leave everything else intact? Will this work?
Alternatively, if I use the obitalk wizard to choose one of the listed ITSPs and have it set them up by template, will that mess up the rest of my settings?
I am trying to go back and forth between a few choices of ITSP to see which gives better quality and which ones are causing problems.