PBX (or something) for modem testing

On 12/4/19 7:01 PM, Chris Osborn via cctalk wrote: Thank you for the link to the write up. I'm glad to learn that you're getting close to the 33.6, what I understand to be the pure analog maximum. I guess that since you're using the TDM400P, you aren't using a VoIP protocol (SIP / IAX / SCCP / MGCP / etc.) between your FXS ports. But you are using SIP as your external DID. I don't see any information about a dial plan. What sort of numbers are you dialing between your FXS ports? How many digits are they? Do you have to dial a 9, or any other digit, to make an outside call? Or are you determining this by the number that you're calling or number of digits therein? I've often wondered about doing this myself for reasons. So I'm quite curious what sort of experience others have in doing it, as well as technical details. Also, I'm glad to find your blog. I follow you on Twitter and will add your blog to my RSS reader. :-) -- Grant. . . . unix || die -- Grant. . . . unix || die