05 December 2025
Firmware update
Firmware Version: 1.5.7
The firmware and detailed description of the product capabilities are available in the Downloads or on the product page.
Added
- Support for combined DTMF transmission mode: RFC 2833 + SIP INFO
- Option to specify a backup NTP server for time synchronization
Improved
- Optimized echo canceller algorithm on the speakerphone interface
Fixed
- BLF failure when the "Remote Call Control" option is disabled
- Telephony Manager crash when an incoming call without caller ID (A-number) is received
- No audio after call transfer if the other party does not specify the call direction attribute when resuming media transfer
Other news
Firmware update for MES2310-12XU, MES2300-xx, MES3300-xx, MES3500I-08P, MES3500I-10P, MES3500I-8P8F, MES3500I-24F, MES5312, MES5316A, MES5324A, MES5332A, MES5300-24, MES5300-48, MES5305-48, MES5310-48, MES5320-24, MES5400-24, MES5400-48, MES5410-48, MES5500-32, MES5700-32. Version 6.6.13.5
“Vendors Are Ready to Deliver Next-Generation Solutions”: Results of Wi-Fi 7 Access Point Testing
Firmware update for UEP5-2 rev.B, UEP5-6. Version 1.4.0