Invention Grant
US07995591B2 SIP2 mobile gateway 有权
SIP2移动网关

SIP2 mobile gateway
Abstract:
A system and method for using an IP client attached to the Public Internet, acting as a virtual mobile terminal such as a cell phone, to have full access to mobile telephony services offered by a mobile operator using a SIP2 Mobile gateway. The services include a mobile telephone number, capabilities of sending and receiving short messages and mobile intelligent services such as prepaid billing, number translation, and ring back tones.
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