SBC Release Notes
Release notes for SBC.
Version 1.7.21
Date: July 24, 2023
- Fixed the following extension issues:
- All extensions lost connections after the SBC server was restarted.
- Extensions registrations all failed.
- Fixed the issue that SIP trunks lost connections unexpectedly.
- Fixed the issue that LDAP contact querying was slow.
- Fixed the issue that there was one-way audio or no-audio issue during calls.
- Fixed the memory leak issue.
Version 1.6.30
Date: February 21, 2022
- Optimized SBC startup programs.
- Fixed the call issue: A user had registered the Hikvision door phones on a Cloud PBX, and sent a call via the door station, after the indoor station answered and opened the door, the call couldn't hang up automatically.
- Fixed the issue that when an inbound call was transferred to an extension, the call became silent because the RTP stream was stopped unexpectedly.
- Fixed the issue that after a user enabled SRTP feature for an extension, the extension failed to send calls because the SBC didn't respond to the 180 message carrying with SDP.
- Fixed the SIP trunk issues:
- SIP trunk failed to be registered due to DNS resolution failure.
- SIP trunk registration kept failing due to insufficient server memory.
- Fixed the Interconnection issue with an on-premises PBX: The Cloud PBX provided an account trunk with TLS transport to connect with an on-premises PBX, the trunk would be disconnected randomly.
- Fixed the issue that after a new SBC Server was installed and restarted, the CPU utilization was 100%.
Version 1.6.19
Date: November 5, 2020
- Added support for enabling and disabling Database Grant feature of a PBX.
- Added support for enabling and disabling Asterisk Manager Interface (AMI) feature of a PBX.
- Optimized SBC startup programs.
- Fixed the one-way audio issue between two PBXs that were created in the same YMP server.
- Fixed the issue that one-way audio issue might occur in external calls.
- Fixed the issue that an external call would be disconnected automatically because SBC didn't reply to the UPDATE packets which were sent from the ITSP.
- Fixed the issue that one-way audio issue would occur during an external call because SBC replied to INVITE packets with 200OK contained an incorrect IP address.
- Fixed the issue that inbound calls might not be established because SBC didn't forward INVITE packets to PBX.
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
- 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
-
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
- Fixed the call issue: There would be no audio after a call was answered for 2 to 3 seconds.
Version 1.5.2
- Optimized the mechanism of RTP ports release, which avoids call errors on PBX.
Version 1.5.0
- 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.
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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
- 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.