Eh...this was pretty simple to get setup. Got it working in about 45 minutes. The most time consuming part was navigating their portal, it is terrible and confusing (Please use flowroute if you have the choice!!)
ITSP Domain your_company.pstn.twilio.com
ITSP proxy address 54.172.60.1 54.172.60.2 54.172.60.3 54.172.60.0
SIP Credentials (unless using IP ACL) username: (username you setup) auth name: (same as username) password: whatever 12 char password you made, contact: +1NUMBER it has to be in E164 format!!
UN CHECK REGISTRATION REQUIRED
SIP URI Local URI, Contact, Display name, Use Credentials Contact
select the registration you setup a second ago, setup your incoming/outgoing group ID's
go to incoming call routes, make sure your numbers are in E164 format in the tel number field (with proper incoming call routes)
in your ARS, make sure you have a "+" (yes with the quotes) before N
Make sure you have your ports open on your firewall.
There are likely other settings needed to fix things like "00" on the CID of transferred calls, and likely have to play with some timers for twinning and RTP keep alives, but that's how I got the trial I signed up for working.
Hopefully that helps.
-Austin
I used to be an ACE. Now I'm just an Arse.
