greenland

  1. MikkelAnd

    Intermittent 403 Forbidden from SIP provider

    Hi, We are using an unsupported SIP provider with a number of fully updated v16 3CX installs and intermittently we are unable to complete any outbound calls. When this occurs we need to restart the SIP service on the afflicted 3CX server. We tried disable/enable the trunk, but that isn't...