SBC Release Notes

Release notes for SBC.

Version 1.6.17

Date: July 20, 2020

  • Fixed the issue that PBX would fail to work because of RTP packets loop issue in SBC.

  • Fixed the issue that PBX could not receive inbound calls because SBC didn't forward SIP INVITE packets to PBX.

  • Fixed the issue that there was no sound after a call was established for 2 hours.

Version 1.6.13

Date: April 17, 2020

  • Fixed the compatibility issue with VoIP Innovation: Users would hear no audio for a few seconds when they made inbound calls to the trunk number of VoIP Innovation.
  • Fixed the issue that SBC could not redirect Re-INVITE packets to the correct PBX instance, which caused the call to be disconnected automatically.
  • Fixed the issue that SBC responded 200OK with incorrect SDP details , which caused no audio after receiving SIP Re-INVITE packets.
  • Fixed the issue that SBC sent INVITE packets with different SDP ports to the same ITSP, which caused one-way audio issue.
  • Fixed the issue that the LDAP Server App on the PBX could not work.
  • Fixed the Interconnection issue with Yeastar S-Series VoIP PBX: Calling from Cloud PBX through one of S-Series VoIP PBX's trunk, the call could not be disconnected automatically on the callee's side after the caller hung up.

Version 1.6.11

Date: December 30, 2019

  • Fixed the compatibility issue with TLS protocol: Registering extensions by TLS protocol would cause high CPU usage.
  • Fixed the compatibility issue with Gigaset N510 IP phone: Gigaset N510 IP phone could not disconnect calls because the phone could not recognize the BYE packet sent by SBC.

Version 1.6.6

Date: December 13, 2019

  • Added support for monitoring the following events and sending notification emails if the relevant threshold is reached.
    • System CPU Overload
    • System Memory Overload
    • Running out of System Storage Space
    • Network Throughput Alert
    • Media Data Transmission Error
    • Fail2ban: An IP address has been banned
    • Dynamic Defense
  • Added support for adding two SIP trunks that have the same ITSP domain and different DID numbers on the PBX.
  • Fixed the issue that all the extensions and trunks would lose connections after rebooting the SBC server.
  • Fixed the issue that the call was not disconnected on the caller's side because SBC sent an incorrect BYE packet.
  • Fixed the issue that there was no sound after the call was established for 30 seconds because SBC sent an incorrect 200OK packet.
  • Fixed the issue that the call would be disconnected automatically if the ITSP sent a RE-INVITE packet during the call.
  • Fixed the issue that there was no sound after an inbound call was established for 3 seconds.

Version 1.5.21

Date: August 15, 2019
  • Added support for matching inbound routes by different DID numbers of a Peer Trunk.
    Note: Required PBX version: 81.9.0.14 or later.
  • Added support for LDAP Server.
    Note: Required PBX version: 81.9.0.14 or later.

Version 1.5.15

Date: June 12, 2019
  • Auto packet-capture function is enabled on SBC by default.

  • Increased the SBC log level so that more debug and trace information can be logged.
  • Optimized the system.

Version 1.5.5

Date: January 11, 2019
  • Fixed the call issue: There would be no audio after a call was answered for 2 to 3 seconds.

Version 1.5.2

Date: December 26, 2018
  • Optimized the mechanism of RTP ports release, which avoids call errors on PBX.

Version 1.5.0

Date: December 18, 2018
  • Added support for displaying SBC version on YMP.
    Note: Required YMP version: 82.8.0.4 or later.
  • Fixed the call issue on Fanvil phones: If TCP/TLS protocol was used on Fanvil phones, the calls on Fanvil phones would be abnormal.
  • Fixed the call issue on Vtech ET365 phone: If TCP protocol was used on Vtech ET365 phone, the calls on Vtech ET365 phone could not be disconnected.
  • Fixed the issue on Linkus mobile clients: There would be no audio during the call if you switched the network type between WiFi and 4G on your mobile.
  • Fixed the Call Pickup issue: If a member of pickup group picked up an incoming call, other members still received "missed call" information on their phones.

Version 1.4.13

Date: November 28, 2018
  • Fixed the compatibility issue of UK ITSP (VoIP Unlimited): The call could not be disconnected on the caller's side after the callee hung up.