Navigation problem – please read this

You are probably following a search result to our old web site. Several pages were removed when the site was updated on 16th November 2015. For many of these pages the same information is now available in the Smartvox Knowledgebase (or wiki) site at

Here are the most popular topics with direct links so you can get quickly to the page you want:
SIP Registration explained –
Using SIP devices behind NAT –
Why is it a problem using SIP Clients behind NAT? –
Outbound Proxy Server explained –
About SIP Domains –
About Asterisk SLA –
SIP Proxies and other server types explained –
SUBSCRIBE and Asterisk Hints explained –
High Availability and failover ideas –
Installing OpenSIPS v1.6 on CentOS 5 –

Sorry for the inconvenience