Operation Manual

Vigor300B Series User’s Guide
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SIP ALG means Session Initiation Protocol, Application Layer Gateway. This page
allows you to choose LAN and WAN profiles for Vigor router to make SIP message and
RTP packets of voice being transmitting and receiving correctly via NAT.
Available parameters are listed as follows:
Item Description
Enable SIP ALG
Check the box to enable the Mirror function for the switch.
Refresh
Renew current web page.
Apply
Click it to save the settings.
Click Apply to save the settings.
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The H.323 ALG allows incoming and outgoing VoIP calls passing through NAT. If required,
check the box and click Apply to save the settings.