atcomsystems.ca/forum Forums TDM Business Telephone Systems NEC Telephones & Systems NEC 2100 SIP with Spectrum

Update: So it was Spectrums fault all along. They had a firewall setup on their Session Boarder Controller. So all the hours of changing my programming, and them saying it was the NEC SL2100, and NEC saying, uh no its Spectrum, welp, it was Spectrum. So advise to anyone having issues before a CUT on a Spectrum SBC, make sure they check that their firewall is off. And thanks HelpIfICan, my database was identical besides the 7 digit dial, and I was able to have Spectrum look at the setup from that database, to compare the SBCs, only for them to only then find they screwed up.