A lot of weird stuff here.
Assuming that the call to a VZW mobile is what you attempted, it somehow got treated as anonymous SIP (on chan_sip no less).
What is the Context for the calling extension? It should be from-internal, the default.
Can you successfully call *43 (echo test)? If so, can you call other internal extensions?
What’s with the SIREN codec? That shouldn’t be enabled anywhere.