Communication devices and methods for operating a communication device

#Various aspects of the disclosure relate generally to communication devices and to methods for operating a communication device.

#The so called Internet Protocol (IP) Multimedia Subsystem (IMS) provides communication services via the Internet Protocol and IMS communication service calls are usually controlled via the Session Initiation Protocol (SIP). Some IMS communication services can be identified by means of so called IMS Communication Service Identifiers (ICSIs). Moreover, so called mobile terminations (which illustratively include modem hardware including one or more transmitters and one or more receivers for inter device communications, also referred to as MT) can be controlled by a so called terminal equipment (which illustratively includes hardware configured to interact with an end user and which includes one or more application processors and means for user interaction, also referred to as TE) through so called AT commands. AT commands exist for controlling voice calls, supplementary communication services and short messaging services as non-IMS services. However, conventionally, an AT command can control only a single voice call. Currently new AT commands are being defined by the 3rd Generation Partnership Project (3GPP) standardization group for dialing Uniform Resource Identifiers (URIs) to be used by IMS services.

#A communication device may include a message generator configured to generate a message in accordance with a command set to use a communication service provided by a communication session setup protocol; and a modem circuit coupled to the message generator and configured to operate in accordance with the message generated by the message generator; wherein the message generator is configured to generate the message comprising a command to at least one of control or establish an Internet Protocol Multimedia Subsystem service.

#In the drawings, like reference characters generally refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention. In the following description, various embodiments of the invention are described with reference to the following drawings, in which:

#FIG. 1 shows a communication device in accordance with various aspects of this disclosure;

#FIG. 2 shows a communication network in accordance with various aspects of this disclosure;

#The following detailed description refers to the accompanying drawings that show, by way of illustration, specific details and embodiments in which the invention may be practiced.

#The word “exemplary” is used herein to mean “serving as an example, instance, or illustration”. Any embodiment or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or designs.

#The word “over” used with regards to a deposited material formed “over” a side or surface, may be used herein to mean that the deposited material may be formed “directly on”, e.g. in direct contact with, the implied side or surface. The word “over” used with regards to a deposited material formed “over” a side or surface, may be used herein to mean that the deposited material may be formed “indirectly on” the implied side or surface with one or more additional layers being arranged between the implied side or surface and the deposited material.