Hey Guys, so I've been battling an issue for about a month. I've had NEC and Teleco give me the same setups on how to configure for IP without Registration and IP with Registration.
NEC looks at my settings and says I'm good. Spectrum, says that we're not accepting what they send, yet we can ping one another. With what spectrum had me setup, incoming rings the 2100 on an Ext I have DID'd, but give the caller a disconnect, yet I receive the caller ID. When I Try to grab an outbound SIP Trunk, I get an immediate Fast Busy now. If I reboot the system, I can grab a SIP Trunk, but after that, all sip trunks fast busy. Does anyone have a working database I can look at that is working currently with Spectrum SIP on a 2100? I'm just trying to compare to make sure NEC hasn't missed something. I'm pulling my hair out fighting this.
