How to Disable SIP ALG on TP-Link xDSL modem router

User Application Requirement
Updated 04-29-2024 03:18:22 AM 110021
This Article Applies to: 

For the VOIP application, sometimes the ISP will ask you to disable SIP ALG on your modem router. Please refer to the following steps to do the configuration.

Step 1 Refer to the link below to log in to the web management interface.

How to log into the web-based interface of the AC VDSL/ADSL Modem Router

Step 2 Go to Advanced > NAT Forwarding > ALG to turn off SIP ALG.

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