Abstract: Various user interfaces and other technologies for seamlessly transitioning between calls of different types can be implemented. The technologies can be implemented to give the impression of a single call that is upgraded from one call type to another. A new application can register so that an appropriate user interface control appears for activation when seamless call transition is possible. Transitioning for third party applications can thus be supported. Cross-platform implementations can be supported.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple communication lines can be implemented. Scenarios providing separate communications lines, such as voice over internet protocol (VOIP), social network communications, and the like can be supported. For example, communication-line-separated and communication-line-aggregated user interface paradigms can be supported. Intelligent selection of an appropriate paradigm can support user preferences, conversation user interfaces, and the like. Other features such as communication line defaults can help users deal with multiple communication line scenarios. A consistent, compact user interface for switching communication lines can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use scenarios are supported.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple communication lines can be implemented. For example, communication-line-separated and communication-line-aggregated user interface paradigms can be supported. Intelligent selection of an appropriate paradigm can support user preferences, conversation user interfaces, and the like. Other features such as communication line defaults can help users deal with multiple communication line scenarios. A consistent, compact user interface for switching communication lines can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use scenarios are supported.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple communication lines can be implemented. For example, intelligent handling of communication line selection can help users deal with multiple communication line scenarios. A user interface for overriding communication line selection can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use default communication line scenarios are supported. Communication lines can be selected based on any of a rich set of input factors.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple communication lines can be implemented. For example, intelligent handling of communication line selection can help users deal with multiple communication line scenarios. A user interface for overriding communication line selection can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use default communication line scenarios are supported. Communication lines can be selected based on any of a rich set of input factors.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple SIM cards can be implemented. For example, SIM-separated and SIM-aggregated user interface paradigms can be supported. Intelligent selection of an appropriate paradigm can support user preferences, conversation user interfaces, and the like. Other features such as SIM card defaults can help users deal with multiple SIM card scenarios. A consistent, compact user interface for switching SIM cards can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use scenarios are supported.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple SIM cards can be implemented. For example, intelligent handling of SIM card selection can help users deal with multiple SIM card scenarios. A user interface for overriding SIM card selection can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use default SIM card scenarios are supported. SIM cards can be selected based on any of a rich set of input factors.

Abstract: Various user interfaces and other technologies for seamlessly transitioning between calls of different types can be implemented. The technologies can be implemented to give the impression of a single call that is upgraded from one call type to another. A new application can register so that an appropriate user interface control appears for activation when seamless call transition is possible. Transitioning for third party applications can thus be supported. Cross-platform implementations can be supported.

Abstract: Various user interfaces and other technologies for seamlessly transitioning between calls of different types can be implemented. The technologies can be implemented to give the impression of a single call that is upgraded from one call type to another. A new application can register so that an appropriate user interface control appears for activation when seamless call transition is possible. Transitioning for third-party applications can thus be supported. Cross-platform implementations can be supported.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple SIM cards can be implemented. For example, intelligent handling of SIM card selection can help users deal with multiple SIM card scenarios. A user interface for overriding SIM card selection can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use default SIM card scenarios are supported. SIM cards can be selected based on any of a rich set of input factors.

Abstract: Various user interfaces and other technologies for interacting with devices that support multiple SIM cards can be implemented. For example, SIM-separated and SIM-aggregated user interface paradigms can be supported. Intelligent selection of an appropriate paradigm can support user preferences, conversation user interfaces, and the like. Other features such as SIM card defaults can help users deal with multiple SIM card scenarios. A consistent, compact user interface for switching SIM cards can be supported. Users can interact with their devices more efficiently and with less frustration. A wide variety of use scenarios are supported.