This note explains in non-technical terms what makes an MS-1 different than a VoIP-1.
To start with, the MS-1 is a SIP trunk while the VoIP-1 is a SIP endpoint. While both devices use SIP to establish calls and both are only able to take calls in rather than call out, there are some key differences in behavior.
- Does not need to register to a proxy server.
- Can accept multiple calls at once.
- So long as SIP invite packets arrive at the MS-1 it will accept the call.
- It can operate off Lan 1 of an MS-1 or LAN 3 as the network demands.
- Needs to register to a proxy server at set intervals, these intervals are defined by the proxy server.
- As such it needs to authenticate to the proxy server before it can join the networks.
- Calls get routed to the VoIP-1 via the VoIP proxy host.
- It can be configured to have 1-4 lines depending on the need of the system and the number of cards installed.
Please note that the MS-1 and VoIP-1 have different sets of instructions detailed on our VoIP landing page on Cornerstone