Grandstream GXP2135 IP Phone Firmware 1.0.11.16

ENHANCEMENT

- Added support of Beirut Time zone
- Added Support of Central Africa Time zone “CAT”
- Added Ability to choose TLS Version for HTTPS provisioning [TLS VERSION SELECTION]
- Added Ability to enable/disable weak ciphers [ENABLE/DISABLE WEAK CIPHERS]
- Improved Support of Integrated Feature Synchronization with NetSapiens Platform
- Improved Device not to query DNS if Internet connectivity popup is disabled
- Added Ability to customize SSH port [SSH PORT]
- Added Support of Factory Reset Security Level [FACTORY RESET SECURITY LEVEL]
- Added Ability to auto answer pre-defined numbers [AUTO ANSWER NUMBERS FEATURE]
- Added support to not send the DHCP release upon reboot [RELEASE DHCP ON REBOOT]

BUG FIX

- Fixed BLF call pickup barge-in code option does not work correctly
- Updated the light_homepage version due to Vulnerabilities CVE-2015-3200
- Fixed Device cuts off Russian names when importing a phonebook XML file
- Fixed Vulnerability CVE2016-218/QIDS 38657
- Fixed Device 256-BIT SRTP Key Length does not work with Asterisk 16.5
- Fixed Device freezes when pressing on "Dial" softkey to dial an LDAP contact
- Fixed Device works abnormally when managing high call traffic
- Fixed Manually added VPKs disappear after upgrading
- Fixed Incorrect translation in Russian
- Fixed Phone_status command in SSH does not work
- Fixed Multicast Paging channel does not work correctly
- Fixed Device does not contact NTP server from DHCP option 42
- Fixed Device can't hang up the call from the 3CX Web client
- Fixed Two Call-Info headers in INVITE causes device not to Auto-Answer Intercom
- Fixed Device does not send Setup Completed Action URL in Static IP boot up
- Fixed HTTPs provisioning via DHCP option 66 is not working
- Fixed Multicast paging audio is not stable if device is not rebooted
- Fixed Device does not start displaying the current frame stream received from GDS directly
- Fixed RCE vulnerability
- Fixed SUBSCRIBE does not contain the contact header

About VoIP Phone Updates:

Firmware updates for VoIP Phones are very important as they usually contain many bug fixes, add new features and updates, as well as add additional security features.

One of the main problems users come across when attempting to upgrade their VoIP Phone is that their device may be locked to a certain Carrier. Adding an unlocked version of the firmware may cause the device to stop working on certain networks. This operation may void your carrier warranty and, as such, is not recommended.

Before downloading, make sure that you have selected the appropriate firmware for your device and that the update supports the VoIP service provider you use.

Generally, it is important to upgrade older firmware in sequence (v1 to v2 to v3) and so on, because many manufacturers don't launch standalone update packages.

Although using beta release firmware packages is tempting, it can prove to be quite risky as well. If you choose to try beta release updates, please read the detailed firmware notes and make sure that you have the possibility to revert to an older and more stable version in case the beta turns out faulty.

If you feel that this update can improve the functionality of your VoIP Phone, please use the download button and follow the installation instructions.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.