Abstract: A server verifies that an address of record for a personal emergency response (PERS) device is in agreement with a current address of the PERS device. The PERS device has a docking station and a wearable unit. At start-up, the docking station places a call to the server and the server receives coordinates of the wearable unit. The coordinates are reverse-mapped into the current address and compared with the address of record. If the address and the address of record differ, the address of record is updated to reflect the current address.

Abstract: A server verifies that an address of record for a personal emergency response (PERS) device is in agreement with a current address of the PERS device. The PERS device has a docking station and a wearable unit. At start-up, the docking station places a call to the server and the server receives coordinates of the wearable unit. The coordinates are reverse-mapped into the current address and compared with the address of record. If the current address and the address of record differ, the address of record is updated to reflect the current address.

Abstract: Identifying a caller includes establishing, by a service provider, a connection over a computer network with a user device and accessing information enabling determination of a location of the user. A request to place a call to a call recipient is received from the user and a pool of temporary telephone numbers is accessed. Based on the location of the user, a temporary telephone number from the pool of temporary telephone numbers is selected. The temporary telephone number is associated with the call, the call is initiated to the call recipient, and information sufficient to identify the temporary telephone number is provided in call information sent to the call recipient.

Abstract: Identifying a caller includes establishing, by a service provider, a connection over a computer network with a user device and accessing information enabling determination of a location of the user. A request to place a call to a call recipient is received from the user and a pool of temporary telephone numbers is accessed. Based on the location of the user, a temporary telephone number from the pool of temporary telephone numbers is selected. The temporary telephone number is associated with the call, the call is initiated to the call recipient, and information sufficient to identify the temporary telephone number is provided in call information sent to the call recipient.

Abstract: Applying services to calls involving subscribers to a telephony services provider includes receiving an indication of a call placed to or from a first call participant. The indication is received by a telephony services provider over a first signaling path of the call that is established between the telephony services provider and a first telephony proxy server that is controlled by a telephony infrastructure provider. Control signals configured to affect a voice path of the call that is established between the first telephony proxy server and a second telephony proxy server also controlled by the telephony infrastructure provider but associated with a second call participant are identified. The identified control signals are sent to the first telephony proxy server over the first signaling path and to the second telephony proxy server over a second signaling path that is established between the telephony services provider and the second telephony proxy server.