If you had to clean-sheet a CLEC today, what would you base it on? (Must do telco compliant billing, CRM is a bonus) and why?
Ms. Benjamin PD Cannon, ASCE
6x7 Networks & 6x7 Telecom, LLC
CEO
ben@6by7.net
"The only fully end-to-end encrypted global telecommunications company in the world.”
FCC License KJ6FJJ
Depends on what you are looking for. Do you need radius authentication? Workforce management and scheduling? Trouble ticketing? Integrated network monitoring?
WISPS use Sonar, Powercode, or VISP.NET
CLEC’s user Rev.io, OneBill, Logisense
What harm can rolling one's own do, especially grafted onto the back of analogue exchanges?
I’ll just write something in FORTRAN real quick…. 
Piker.
If it ain’t COBOL it ain’t got props.
…Allen
Oh come now. LISP or assembler. Maybe TCL.
…Miles