An apparatus, and an associated method, for facilitating communication operations with a wireless device that is ICS or DTM capable. Signaling protocols and apparatus are provided for operation of the wireless device when an ICS with the wireless device is ongoing, and the device leaves an area that provides for ICS as well as when the ICS can be provided using circuit-switched connections.

In some examples, a user equipment (UE) detects a change in a radio access technology, and in response to the change in the radio access technology, receives information sent by a wireless network. The UE compares the received information to a policy to determine whether a feature is supported by the wireless network, and based on the comparing, sends an indication informing the wireless network which network type of plural different network types to use for sending a Session Initiation Protocol (SIP) message.

A system, method and computer-readable medium for allowing the use of an alternative numbering plan for delivering short messages to mobile subscribers using the public mobile telephone network is provided. Users of an enterprise or other closed networks as well as users that are not part of a closed network may send short messages destined to members of an enterprise or closed network from their mobile or other devices associated with their subscription using an alternative enterprise directory number, such as the office number, instead of the mobile number, such that the alternative number will be presented at the destination device as the originating number. The recipient may respond to the message by addressing the response to the enterprise or closed network number, and the response may be delivered to the originator's mobile or other device associated with their subscription.

A method, system, and relevant apparatuses for selecting a Multimedia Ring Back Tone (MRBT) are disclosed. The method for selecting an MRBT includes: receiving a call request sent by a calling party, where the call request carries an MRBT type required by the calling party; sending the MRBT type required by the calling party to the MRBT server; obtaining MRBT information sent by an MRBT server, according to the MRBT type required by the calling party; and sending the MRBT information to the calling party. With the present invention, the calling party sends the required MRBT type, and the MRBT server provides the corresponding MRBT information for the calling party. Therefore, the calling party has an opportunity of selecting the MRBT type required by the calling party, and thus user experience is improved.

An improved system and method are disclosed for providing voice call continuity in an enterprise network. For example, an enterprise public branch exchange (PBX) may be configured with a pilot number that is used to provide VCC services when called by a client. Digit collection via DMTF signaling or other means may be used to collect destination information from the client. The enterprise network may use the collected digits to establish a communication session with another device that corresponds to the destination information.

A method includes establishing a circuit switched call with an automated answering system at a destination, the destination having a communication server associated therewith, transmitting a request to switch to Internet Protocol (IP) communication to the automated answering system, receiving an IP request acknowledgement message from the communication server responsive to transmitting the request to switch to IP communication, and establishing an IP communication session with the communication server responsive to receiving the IP request acknowledgement. Systems and computer program products are also disclosed.

In some implementations, a computing device may determine a location of the computing device. The computing device may have an associated first phone number. The computing device may determine that the location of the computing device is outside a geographic area in which a carrier associated with the first phone number provides service. The computing device may send a registration request to a local network indicating that the computing device is operating in an over the top mode. The computing device may originate an outgoing call from the computing device. The outgoing call appears to a called party to originate from a second phone number that is different from the first phone number.

Methods for providing contextual information about communication devices and/or services. Profile information indicating a user's communication devices and/or services is stored. When profile information or a message log is displayed, the user may identify a communication device and/or service. A query inquires whether the user would like contextual information. The contextual information may be obtained from a gateway in a data network or a telecommunications manager in a telecommunication network. The contextual information is displayed. Profile information about a user's communicating partner may be stored. When the user makes an effort to communicate with the partner, a check may be made of the partner's profile information for a preferred communication device and/or service. If the user does not have a communication device and/or service corresponding to that of the communicating partner, a query may inquire whether the user would like contextual information. If so, the contextual information is presented.

Methods and apparatus implementing a telephony terminal for connecting a telephone to a data network. In one implementation, a telephony system includes: a phone connection for connecting to a telephone; a network connection for connecting to a network; and a controller connected to said phone connection and to said network connection; wherein said controller provides a phone service for processing information for said phone connection, said controller provides a network service for processing information for said network connection, and said controller provides a network voice service for converting information to and from a network voice format.

The A voice call processing method includes, when a terminal meets at least one of two preset conditions, performing handover from a Long Term Evolution (LTE) network currently accessed by the terminal to a non-LTE standard network, and performing a circuit switched (CS) voice call process on the non-LTE standard network.