Abstract: Methods and computing devices implementing the methods maintain an information interface for contact information that includes temporal information related to when information elements within a contact record were last updated. The computing device may receive contact information for a field of a data record in a contact database and determine whether the contact information differs from previously stored contact information. In response to determining that the contact information differs from the previously stored contact information, the computing device may store the contact information and a time stamp in the data record. The time stamp may indicate when the contact information is stored.

Abstract: One aspect of the present application provides a Category M apparatus that communicates over a communication network. The apparatus comprises a processor and an interface. The processor is configured to generate a message requesting registration of the apparatus with a core network, the message generated to include at least one header indicating a power saving mode capability of the apparatus. The processor is further configured to schedule sleep periods and wakeup times for the apparatus. The interface is configured to transmit the message to the core network. The interface is further configured to receive a response, from the core network, including one or more parameters and one or more timers established by the core network based at least in part on the power saving mode capability of the apparatus.

Abstract: Methods, systems, and devices for wireless communication are described for redirection of a session initiation protocol (SIP) INVITE. A multi-subscriber identification module user equipment (multi-SIM UE) may intelligently determine when to redirect a SIP INVITE message to control on which of multiple networks a communication session is established. The multi-SIM UE may receive a SIP INVITE from a first user equipment (UE) requesting to establish a SIP session on a first network, the SIP INVITE including a first network address of the multi-SIM UE that is associated with a first SIM of the multi-SIM UE. The multi-SIM UE may, based at least in part on determining that a redirection criterion is satisfied, transmit a SIP redirection response including a second network address of the multi-SIM UE on a second network that is associated with a second SIM of the multi-SIM UE.

Abstract: One aspect of the present application provides a Category M apparatus that communicates over a communication network. The apparatus comprises a processor and an interface. The processor is configured to generate a message requesting registration of the apparatus with a core network, the message generated to include at least one header indicating a power saving mode capability of the apparatus. The processor is further configured to schedule sleep periods and wakeup times for the apparatus. The interface is configured to transmit the message to the core network. The interface is further configured to receive a response, from the core network, including one or more parameters and one or more timers established by the core network based at least in part on the power saving mode capability of the apparatus.

Abstract: Methods, systems, and devices for wireless communication are described for redirection of a session initiation protocol (SIP) INVITE. A multi-subscriber identification module user equipment (multi-SIM UE) may intelligently determine when to redirect a SIP INVITE message to control on which of multiple networks a communication session is established. The multi-SIM UE may receive a SIP INVITE from a first user equipment (UE) requesting to establish a SIP session on a first network, the SIP INVITE including a first network address of the multi-SIM UE that is associated with a first SIM of the multi-SIM UE.