Grandstream GRP2615 IP Phone Firmware 1.0.5.48

ENHANCEMENT

- Added support for port number and IPv6 address for BLF server address
- Added support for Ukrainian language on LCD
- Added support for GRP2624/GRP2634

BUG FIX

- Fixed issue where the phone would freeze randomly when using the Sennheiser DW Office USB headset
- Fixed issue where the phone would send the “#2” code instead of the default code “#72” when using the CallPark softkey
- Fixed issue where INVITE should be sent to the registered secondary server when the primary server is down on NetSapiens
- Fixed issue where when web access is disabled by provisioning, the web UI is still accessible until the phone is rebooted
- Fixed issue where the “Maximum TLS Version” setting set to “Unlimited” wasn’t taking effect
- Fixed issue where the phone would have no audio after making an outgoing call in Handsfree mode
- Fixed issue where call audio will drop every 20 seconds continually(audio clipping) on the Netsapiens Server
- Fixed issue where the phone would always fail to register to the primary server on its first try because it uses the wrong SIP port
- Fixed issue where the phone would randomly crash when using a Plantronics EHS headset
- Fixed issue where the initial REGISTER request after provisioning is always duplicated
- Fixed issue where phone is failing to resolve DNS query for hostname

KNOWN ISSUES

- When using USB headset with GRP2615/2616, if “Always Ring Speaker” is set to “Yes both” on the phone’s web UI, you will only hear the ringtone through the headset, not the speaker.

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.