Q30: Why Won't My Voip Device Work With My Router - D-Link COVR-C1203 User Manual

Q30: Why won't my VoIP device work with my router?

1. Please confirm if you are using the latest firmware. You can review the process of firmware version
checking and upgrading process below:
(1) Firmware version checking:
(2) Firmware upgrade process:
2. Disable the SIP Application Level Gateway (ALG) feature on your router
SIP ALG allows devices and applications using VoIP (Voice over IP) to communicate across NAT.
Some VoIP applications and devices have the ability to discover NAT devices and work around
them. This ALG may interfere with the operation of such devices. If you are having trouble making
VoIP calls, try turning this ALG off.
Please launch your browser and enter http://covr.local./ into the address bar. Then login and follow
the steps below:
Step 1: First, click Feature -> Firewall:
How to check firmware version for your router?
How to upgrade firmware for your router?
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