SIP ALG

SIP ALG

A SIP ALG can and usually does exist on Routers, Modems or in rare cases a managed switch.
You must disable this feature for any VoIP service to operate as expected.

Windows Based Testing

This link will download a small .exe agent that can test for the presence of a SIP ALG on the network the host PC is connected to..

After downloading, open the file and accept any permissions your windows/mac machine may ask for.

If the results = False then a SIP ALG was not detected by the client.

If the results = True then a SIP ALG is active and must be turned off.


Mac OS X Based Testing

This link will download a small APP agent that can test for the presence of a SIP ALG on the network the host MAC is connected to..

After downloading, open the DMG, move the contents to Applications and accept any permissions your mac machine may ask for.



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