Hi, my name is Edinson Vivas, System Engineer w/10y experience.
1.- Can u detailing, what kind of TRUNK is ? Digitally (IAX2, SIP) or Analog (Dahdi, Zap, etc...)
i've worked with asterisk based server (as Elastix), configuring trunks (SIP, DaHDI) and a lot of extensions (Cisco model 7945G, Analog phones w/MTA, softphones, etc...). I can help u if let u me.
I'm Venezuelan, i speak English basic - intermediate. i understand writing better than speech