Yealink, BLF not work

the most common issue is related to the router’s ALG (Application Layer Gateway) settings. ALG can interfere with the SIP (Session Initiation Protocol) traffic required for BLF functionality. This happens because ALG tries to “translate” SIP packets, which can disrupt the smooth flow of information necessary for BLF updates, causing the lights to be unresponsive …

Skyswitch – yealink – TLS

where to check firmware version ? 1. Firmware Update: Ensure your Yealink phones have the latest firmware version: that supports TLS 1.2. Refer to Yealink’s documentation: for specific firmware versions and upgrade procedures for your phone models. Models up to V84 (before openssl 2.1. 0.11) support algorithms like RSA/DH, and TLS support is limited to TLS 1.2 . …

Microtik router port forwarding – fortinet policy

IP -> firewallhttps://help.yeastar.com/en/k2/topic/set-up-port-forwarding-on-mikrotik-router.html quick set -> port setting (woh, this is wrong) issue for quick set: It will do dst-nat to all of packets coming from wan to lan AND from lan to wan. If you will add rule to port forward tcp:80 to 192.168.88.99:80, it will break all connections from lan to wan:80. It …