METHOD AND APPARATUS FOR INBOUND ROAMING OVER CELLULAR VOICE CHANNEL
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jun 9, 2016
app pub date -
Dec 3, 2014
filing date -
Dec 3, 2014
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An Internet Protocol (IP) telephony system comprises a radio communications interface and a processor. The processor is configured to execute a Communications over Internet Protocol (CoIP) application for an Internet Protocol (IP) telecommunication service; obtain an indication of a change of a Subscriber Identity Module (SIM) card of the mobile telephony device; and upon obtaining the indication of change, and generate, for sending over the radio communications interface, a registration message to the IP telecommunication service, the registration message including a new International Mobile Subscriber Identity (IMSI) for the mobile telephony device.
First Claim
Other Claims data not available