More details about the improvements, please take a view.

Optimized User interaction

Call process

Open

Directory

Open

Main interface

Voice Quality

New HD codec: G.722.1

More powerful noise reduction function

Acoustic Shield

Thoroughly support Htek Devices Management System (HDMS)

Fully supported by Htek Device Management System (HDMS).

Provisioning, upgrading, checking register status, etc., you could easily manage your IP phones anywhere by one website, only the phone connects to the service.

Moreover, you could catch the error alarm the very first time, so you could be able to solve it before the end-user notice it.

More reliable security, and fully support TLS v1.3

Improved security, especially will support TLS v1.3

TLS 1.3 updates the most important security protocol on the Internet, delivering superior privacy, security, and performance.

Although the previous version, TLS 1.2, can be deployed securely, several high profile vulnerabilities have exploited optional parts of the protocol and outdated algorithms. TLS 1.3 removes many of these problematic options and only includes support for algorithms with no known vulnerabilities.

In contrast to TLS 1.2, TLS 1.3 provides additional privacy for data exchanges by encrypting more of the negotiation handshake to protect it from eavesdroppers.  This enhancement helps protect the identities of the participants and impede traffic analysis. TLS 1.3 also enables forward secrecy by default which means that the compromise of long term secrets used in the protocol does not allow the decryption of data communicated while those long term secrets were in use. As a result, current communications will remain secure even if future communications are compromised.

With respect to performance, TLS 1.3 shaves an entire round trip from the connection establishment handshake. In the common case, new TLS 1.3 connections will complete in one round trip between client and server. Some applications can now also use modes that deliver data to applications even sooner. These enhancements coupled with efficient modern cryptographic algorithms make TLS 1.3 faster than ever.

More details, please refer to IETF   TLS 1.3

Broader protocol compatibility

Upgrade HTTP and other protocols to ensure protocol compatibility in functions such as provisioning. Compatibility upgrades for other protocols will continue...

Smoother switching between active and standby servers

The functions of the switching of Primary and failover(fallback) SIP servers have been comprehensively upgraded to ensure uninterrupted call services.

More perfect BT and WiFi functions

The enhancement of Bluetooth and WiFi functions enables the phone to scan Bluetooth/wifi devices faster and maintain a more stable connection