VOICE OVER INTERNET PROTOCOL (VoIP) TRANSMIT REDUNDANCY

An apparatus for wireless communication, comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory, the at least one processor configured:
• to establish a primary real-time transport protocol (RTP) link to a peer device via an Internet protocol-based multimedia subsystem (IMS) network;
• to establish a duplicate real-time transport protocol (RTP) link to the peer device via a firewall and a network address translation (NAT) server, the duplicate RTP link initially established with a session traversal utilities for NAT (STUN) server;
• to transmit RTP packets to the peer device via the primary RTP link and the duplicate RTP link;
• and
• to determine whether to continue with the duplicate RTP link established with the STUN server or to reestablish the duplicate RTP link with a traversal using relays around NAT (TURN) server.

A non-transitory computer-readable medium having program code recorded thereon, the program code executed by a processor and comprising:

• program code to establish a primary real-time transport protocol (RTP) link to a peer device via an Internet protocol-based multimedia subsystem (IMS) network;
• program code to establish a duplicate real-time transport protocol (RTP) link to the peer device via a firewall and a network address translation (NAT) server, the duplicate RTP link initially established with a session traversal utilities for NAT (STUN) server;
• program code to transmit RTP packets to the peer device via the primary RTP link and the duplicate RTP link;
• and
• program code to determine whether to continue with the duplicate RTP link established with the STUN server or to reestablish the duplicate RTP link with a traversal using relays around NAT (TURN) server.