Method for registration of a communication terminal with an IMS services network utilizing an SMS message sent to the communication terminal
First Claim
1. Method for registration of a called communication terminal with a IMS services network via at least one communications network, the method comprising:
- allowing a user of a communication terminal to pre-select whether the communication terminal is authorized to receive a forced IMS registration procedure;
in response to an IMS service request from a calling terminal, checking whether the called communication terminal is currently IMS registered on the part of a network element of the IMS services network, and if not IMS registered, whether the called communication terminal has been authorized for the forced IMS registration procedure, the calling terminal and the called communication terminal comprising user communication terminals; and
when the called communication terminal is not currently IMS registered, the network element automatically initiating a forced IMS registration procedure in the called communication terminal by transmitting a Short Message SMS to the called communication terminal, the Short Message containing an IMS registration request, wherein in response to the IMS registration request, the called communication terminal is automatically registered without user input.
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Accused Products
Abstract
The present invention relates to a method for the registration of a communication terminal with a IMS services network via at least one communications network. According to the present invention, it is checked on the part of a network element of the IMS services network whether the communication terminal is currently IMS registered. If the communication terminal is not currently IMS registered, an IMS registration procedure is automatically initiated in the communication terminal by transmitting a Short Message SMS to the communication terminal, the Short Message containing an IMS registration request.
On receipt of the SMS the communication terminal automatically registers with the IMS.
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Citations
10 Claims
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1. Method for registration of a called communication terminal with a IMS services network via at least one communications network, the method comprising:
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allowing a user of a communication terminal to pre-select whether the communication terminal is authorized to receive a forced IMS registration procedure; in response to an IMS service request from a calling terminal, checking whether the called communication terminal is currently IMS registered on the part of a network element of the IMS services network, and if not IMS registered, whether the called communication terminal has been authorized for the forced IMS registration procedure, the calling terminal and the called communication terminal comprising user communication terminals; and when the called communication terminal is not currently IMS registered, the network element automatically initiating a forced IMS registration procedure in the called communication terminal by transmitting a Short Message SMS to the called communication terminal, the Short Message containing an IMS registration request, wherein in response to the IMS registration request, the called communication terminal is automatically registered without user input. - View Dependent Claims (2, 3, 4, 5, 6)
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7. System for registration of a called communication terminal with IMS services comprising:
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a communications network; an IMS services network connected via a data connection to the communications network, the IMS services network checking whether the called communication terminal is currently IMS registered in response to an IMS service request from a calling terminal, and if not IMS registered, whether the called communication terminal has been authorized for a forced TMS registration procedure, the calling terminal and the called communication terminal comprising user communication terminals; a Call State Control Function CSCF as part of the IMS services network, wherein a user of a communication terminal is allowed to pre-select whether the communication terminal is authorized to receive the forced IMS registration procedure; and a Short Message Service Center SMSC as part of the communications network, the SMSC is connected via a data connection to the Call State Control Function, wherein if when the called communication terminal is not currently IMS registered, the IMS services network automatically initiating a forced IMS registration procedure in the called communication terminal by causing the SMSC to transmit a Short Message SMS to the called communication terminal, the Short Message containing an IMS registration request, wherein in response to the IMS registration request, the called communication terminal is automatically registered without user input. - View Dependent Claims (8, 9, 10)
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Specification