603 error

  1. 603 error for only 1 number

    I’ve had 3CX for a while, but I haven’t encountered this problem before. I can successfully call any phone, except for my own cell have phone. I am using Twilio and don’t see anything in the Twilio logs, but I am getting this in the 3CX logs: Unknown IS handler: UnkISH Recv 603/INVITE from...
    • ASofNWAugusta
    • Thread
    • 603 error failed call outgoing call blocked twilio trunk
    • Replies: 1
    • Forum: 4SC
  2. JustinLippolis

    Use Direct Routing for ad-hoc calls in Teams

    Hi everyone, I am dealing with a very frustrating situation. Microsoft has been engaged but they haven't been much help with the issue. I will *try* to make this as brief as possible without leaving out important details! To save anyone that can maybe answer one question from reading through...
    • JustinLippolis
    • Thread
    • 499 603 error caller forbidden direct routing teams
    • Replies: 0
    • Forum: MS Teams

  3. Solved 603 on external calls with Android app

    Hi, when using the Android app and dialing an external number, or receiving an external call, I get a 603 error Declined. I don't get this error on an iPhone app. Any suggestions how I can analyse this error, to see if there is a configuration error or another cause? Thx Pieter
    • PvK
    • Thread
    • 603 error
    • Replies: 24
    • Forum: Other
  4. EderPardeiro

    3CX with Audiocodes 310HD IPPhone

    Hi!!!! I'm replacing the PBX of a client, it used Asterix, now I have installed and configured 3CX with all the extensions. Everything is working perfectly except for 20 Audiocodes IP phones, model 310 HD. The extension is normally authenticating to 3CX. Can receive calls and speak with...
3CX Logo Footer Copyright © Sitemap Privacy
Top Bottom