Jrd Communication (shenzhen) Ltd.

Mourong Nie

A direct connection call method includes: receiving an IP address of a first terminal by a core network device; transmitting the IP address of the first terminal to a second terminal by the core network device; receiving an IP address of the second terminal by the core network device; and transmitting the IP address of the second terminal to the first terminal by the core network device; wherein the core network device is configured to exchange the IP addresses of the first terminal and the second terminal for establishing a direct connection data link between the first terminal and the second terminal to transmit call voice data packets. A core network device and a non-transitory storage medium are also provided.

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Guangdong, China

Mourong Nie