Patent ID: 11930133
Assignee: VERIZON PATENT AND LICENSING INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The non-transitory computer-readable medium of claim 14, wherein the one or more instructions, that cause the device to cause, when the first option is identified, the bearer path to be established between the PSAP and the second user device for the emergency callback, cause the device to:
provide, to a first network device, an invite that includes a session description protocol (SDP) offer from the PSAP;
receive, from the first network device, an SDP answer to the invite;
forward the SDP answer to the PSAP;
receive an acknowledgment of the SDP answer from the PSAP; and
cause the bearer path to be established based on the acknowledgment of the SDP answer.