say, for multiple extensions, we can disable the checking, then seems good
Category archives: Uncategorized
How “reverse ssh” work in remote tech support
basically, tech created a user for customer to login remotely login their own box, then ssh back to root, customer enter root password, connection established
Protected: STIR/SHAKEN Attestation test number – 1 920 666 1392 (270-888-7847)
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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 …
Anydesk – avoid license
remove all anydesk processes windows + R, %programdata%\Anydesk create backup folder, move 2 system file in it run anydesk again
wordpress – maintenance
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 . …
ICMP type – disable remote ping
all type
Interview questions – answer by chatgpt
Yealink – call forwarding – TLS – feature-sync-with-yealink
click bw.feature_key_sync=”1″ Feature Sync through Subscribe/Notify does not work if TLS is enabled on the phone. if there is an issue, for extensions in queue, just use UDP instead of TLS