Grandstream GXP1620 IP Phone Firmware 1.0.4.152

ENHANCEMENT

- Updated Hungarian language display
- Changed "São Paulo" time zone to UTC-3
- Added Support to allow more special characters to be used in SIP account via keypad [MORE SPECIAL CHARACTERS VIA KEYPAD]
- Added GNU GPL License information display on LCD and Web UI [GNU GPL LICENSE]
- Added Ability to scroll long names on the screen in order to display the full name [SCROLL LONG NAMES]
- Added Support of “Provision” mode for VPK/MPK to trigger provisioning [PROVISION VPK/MPK]
- Added Support to input username and password via keypad for Broadsoft's directories [BROADSOFT DIRECTORIES]
- Added Support of Chile time zone
- Added Support of an Action URL for screen capture [SCREEN CAPTURE ACTION URI]
- Added Ability to allow @ character in SIP user ID [SIP USER ID FIELD IMIPROVEMENT]
- Added Support of Auth Header on Initial REGISTER [ADD AUTH HEADER ON INITIAL REGISTER]
- Add Support to include DHCP Option 12 into DHCP Inform message [HOST NAME(OPTION 12)]
- Increased SIP Certificate length limitation from 2048 characters to 8192

BUG FIX

- Fixed Device freezes on the automatic redial page
- Fixed Devices freezes after uploading malformed phonebook
- Fixed Bypass dial plan is not working properly during API dialing
- Fixed Device does not prompt for authentication when HTTP server has multiple files
- Fixed Device crashes when it answers a call during redial countdown
- Fixed Device freezes on the automatic redial page
- Fixed RecordOn button is displayed as Cancel button on call interface
- Fixed comment error for active backlight timeout
- Fixed Device can’t use phone book dialing when automatic redial prompt exists
- Fixed Device cannot upgrade to OEM version firmware
- Fixed Device web page displays abnormally on Programmable Keys page and GDS opendoor page
- Fixed Automatic redial will not be triggered after call timeout
- Fixed Device LCD does not display SRTP icon in talking when establishing call with non-registered account line key
- Fixed Offhook auto dial does not work after the phone is locked
- Fixed time display on the LCD screen is wrong
- Fixed The time zone on LCD is not consistent with the time zone on the web UI
- Fixed PC port VLAN default values of LCD and Web are inconsistent
- Fixed Keypad lock fails after automatic redial is enabled
- Fixed Device can still dial the non-emergency number after the keypad is locked
- Fixed Device crashes after emptying emergency numbers
- Fixed Device does not prompt authentication for CFGmac.xml that sets authentication
- Fixed The keypad lock timer does refresh after the keypad lock timer is set to 0
- Fixed the Internet Protocol on LCD and Web are inconsistent
- Fixed Off-hook auto dial feature works abnormally
- Fixed Device freezes after uploading CA certificate of about 3M
- Fixed Nonce Count is wrong for Re-Register if there is 401 challenge for Invite
- Fixed Bypass Dial plan configuration causes the failure on network Conference and voicemail calling
- Fixed Device does not display the correct Issued By and Expiration from the loaded CA certificate
- Fixed Device crashes after doing search in the directory LDAP
- Fixed Device taking more than 1 second to respond the second INVITE
- Fixed Device displays only the first contact's number when one contact includes multiple numbers
- Fixed Device shows incorrect display under local call Log
- Fixed GXP1630 account 3 does not have option "Callee ID display"
- Fixed Calls don't disconnect when using TLS
- Fixed Device scrolling feature on dialed calls logs not behaving correctly
- Fixed 802.1X port based authentication not working
- Fixed Phonebook screen displayed extra Sort softkey after moving cursor to LDAP Directory
- Fixed Device sends anonymous identity for Radius authentication
- Fixed Delay on switch during Device booting
- Fixed Device does not send Custom Certificate for TLS Authentication
- Fixed Device Jitter Buffer Type does not work correctly
- Fixed Device freezes randomly
- Fixed Device does not display lock sign when the call is established using both SRTP and TLS

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.