Installation guide

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Calls on the SIP Gateway terminate unexpectedly.
Cause Action
Issues with SIP account settings. Make sure that your SIP account is
registered. The REGISTRATION LED on the
SIP Gateway front panel should be solid
GREEN and the Registration Status on the
WebUI SIP Account Settings should show
Registered.
On the WebUI SIP Account Settings page,
ensure Static Registration is not selected.
Incorrect SIP account settings. Make sure your SIP Account settings are set
as per your SIP service provider’s
requirements.
Network connection problems. Make sure the SIP Gateway is synchronized
to the system. Check the WebUI Detailed
System Information page.
Make sure you have a reliable Internet
connection for the SIP Gateway.
Try port forwarding on the router, the port
specified for the SIP Server to the SIP
Gateway LAN address.
Make sure the SIP service is not down.
Calls on the SIP Gateway have intermittent audio.
Cause Action
Too many simultaneous calls approaching or
exceeding available network bandwidth.
Enable G.729 codec, or give G.729 priority
over G.711.
Increase network bandwidth to allow for the
maximum number of simultaneous calls you
have purchased.
Calls on the SIP Gateway have one-way audio.
Cause Action
Incorrect LAN configuration. Check your LAN configuration for the
Gateway. We recommend using the IP
subnet 192.x.x.x.