Methods of handling psap call backs during ongoing emergency call
AssigneeT-Mobile Innovations LLC
InventorManikanta Kumar Teja PENUMATSHA
Life of this patent
Estimating the term…
Abstract
Methods are provided for preventing emergency callbacks to a wireless device. A first emergency call session is established between a public safety access point (PSAP) and a wireless device. After the first emergency call session between the wireless device and the PSAP has ended, the PSAP attempts to callback the wireless device. It is determined that the wireless device is connected to a second emergency call. A session initiation protocol (SIP) signaling message is transmitted to the PSAP that the wireless device is connected to the second emergency call to stop unneeded callbacks to the wireless device.
Claims20
A method comprising:
- receiving a callback from a public safety access point (PSAP) after a first emergency call session between a wireless device and the PSAP has ended;
- determining the wireless device is connected to a second emergency call;
- and
- transmitting a session initiation protocol (SIP) signaling message to the PSAP that the wireless device is connected to the second emergency call.
A method comprising:
- establishing a first emergency call session between a public safety access point (PSAP) and a wireless device;
- receiving a callback from the PSAP after the first emergency call session between the wireless device and the PSAP has ended;
- determining the wireless device is connected to a second emergency call;
- and
- transmitting a session initiation protocol (SIP) signaling message to the PSAP that the wireless device is connected to the second emergency call.
A method comprising:
- establishing a first emergency call session between a first public safety access point (PSAP) and a wireless device;
- ending the first emergency call session between the first PSAP and the wireless device;
- establishing a second emergency call session with a second PSAP;
- receiving a callback from the first PSAP after the first emergency call session between a wireless device and the first PSAP has ended;
- determining the wireless device is connected to the second emergency call session;
- and
- transmitting a session initiation protocol (SIP) signaling message to the first PSAP that the wireless device is connected to the second emergency call session.
Dependencies are inferred from the claim text.