×
Log in
Get Started
Travel
Technology
Sports
Marketing
Education
Career
Social Media
+ Explore all categories
Report -
Technical Document Telecom User-Network Interface ... · documented in a “PTC 228/YY/XXX PBX SIP Trunking Interoperability Specification” for that particular IP-PBX (where "PTC
Select
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Please pass captcha verification before submit form