When choosing a VOIP phone subscription, the question is whether it is a SIP account or SIP Trunk. Both subscriptions are linked to the same service center, but with completely different usage and technical solution

SIP account

Typically a single phone number and associated speech channel. Usually the user is connected to the control panel with a user name and password. The user name is also the switch number and is displayed. A SIP account usually corresponds to a single trunk with 1 number. The N-System VOIP subscription offers its customers a N-Office tariff plan that allows 2 voice channels, so with the right terminal, the line will not be busy even if they are already on call (call waiting). The SIP account can be programmed to IP Phone, Softphone Client, SIP ATA.

SIP Trunk

As its name implies, it is a connection where up to 100 simultaneous calls can be made. Usually, the IP address is used for authentication between the service center and the subscriber’s center and terminal. It may have multiple dialing numbers, and the subscriber’s terminal equipment determines what number is displayed. At N-System, we distinguish between N-Trunk 5, N-trunk 10, N-trunk 20, N-Trunk 30, and N-Trunk 60, which provide 5, 10, 20, 30, 60 voice channels (simultaneous talk). The SIP trunk can only be programmed for IP PBX, SIP Gateway, no configuration for IP phone, softphone client.

If you only need one or two trunk lines, you need a SIP account, or N-Office.
However, if you have an IP PBX or many dial-up numbers, or even want to handle multiple inbound and outbound calls, we definitely recommend one of our N-Trunk services within SIP Trunk.