sip registration failed

  1. SBC Router Phone SIP Reg error

    We have an interesting “issue”…new deployment, 3CX hosted, running the latest version (18.0 Update 6 (Build 908) about 35 Fanvil X5U-v2’s running in router mode. We physically installed and registered everything yesterday. Came in this morning to do training and almost all but 1 or 2 phones...