01What is internet calling?
VoIP carries voice over an internet connection. SIP handles registration and call signalling. A softphone is the application used to place and receive calls. Audio quality depends on network stability, devices and the call route.
02SIP account or DID number?
A SIP account identifies an app or compatible device. A DID is a public business number with a separate subscription for incoming external calls and routing to eligible accounts. An internal account alone does not include a public number or unlimited external calling.
03How do you choose a service?
Start with team size, required calling capacity and whether you need a business number. Compare SIP account packs and DID categories, or discuss contact center requirements with sales. Availability and provisioning must be confirmed before service starts.