FIELD: information technologies.
SUBSTANCE: method of assigning cellular communications identifier to SIP device consists in the following: it is determined if the device is only SIP device requiring cellular communication identifier which includes one or more of the following: electronic serial number (ESN) or International Mobile Subscriber Identity (IMSI) number; only SIP device is authenticated based on determination that only SIP device corresponds to SIP user account of SIP provider associated with SIP device only; and cellular communication identifier is assigned only to SIP device based on authentication, and assignment additionally contains selection of one of certain number of cellular communication identifiers received from cellular operator by SIP provider associated with SIP device only.
EFFECT: providing interaction of devices with session initialisation protocol for cellular communications network.
30 cl, 10 dwg
