Knowledgebase and FAQs - VOIPo

Toll Free: 949-829-4200

Amazing Customer Service

Session Initiation Protocol. Voice over IP uses SIP to communicate call information between an end user, VoIP proxies, and upstream providers.

Software that allows you to make and receive phone calls using your computer and your internet connection.

Stateful Packet Inspection. A process some routers and firewalls use to keep track of traffic. Sometimes SPI will block or redirect traffic, causing issues for services such as Voice over IP.