Grandstream DP750 IP Phone Firmware 1.0.11.2

ENHANCEMENT

- Added warning message when work with GDS door system, to show if open door successful or failed.
- Added DP75X Callee Codec Negotiation Priority option. [CALLEE CODEC NEGOTIATION PRIORITY]
- Added Chile time zone.
- Added support to bypass the dial plan check when redial / call back phone number via call history.
- Changed SIP account name length from 14 characters to 256.

BUG FIX

- Fixed handsets cannot redial unless pressing off-hook after handset been factory reset.
- Corrected DP752 UPNP friendlyName to be DP752-{MAC}.
- Fixed DP75X DSCP of SIP, change it to be CS5 instead of CS3.
- Changed DP75x certificate “issue by” to be Common Name only.
- Updated the help text of firmware upgrade and provisioning related fields to indicate the support of FTP and SFTP protocol.
- Fixed DP75X do not send REGISTER to the option 120 URL when there is one address on option 120.
- Fixed DP75X IP address/subnet/gateway/DNS changed to 0.0.0.0 after set SIP TLS Private Key.
- Fixed DP760 display “Open Subscription” and “Page All” button on the icon bar.
- Fixed gateway does not update after connected to a different network.
- Fixed after DP75x factory reset, the Option 60 been set to null instead of its default value.
- Updated CPE to 1.0.1.128 to improve the support for GDMS platform.
- Fixed DP75X Music on Hold URI option do not take effect.
- Fixed DP75X Off-hook Auto Dial option do not take effect

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.