Released Date: June 5, 2019


  • Fixed the issue that the SIP trunk advanced settings would be lost after upgrading the PBX.
  • Fixed the Allow Mode for SIP Forking issue: If Allow Mode for SIP Forking setting was enabled, a system hang would occur when a ring group member performed a blind transfer to another user.

  • Fixed registration issue on SIP trunk: PBX IP might be blocked by the VoIP provider if PBX sent a mass of REGISTER packets to retry register SIP trunk after the first registration failure.