Adapting an audio bit rate based on changing network conditions

A non-transitory computer-readable medium storing instructions, the instructions comprising:

• one or more instructions that, when executed by one or more processors of a first user device, cause the one or more processors to:
• receive information indicating changed network conditions for a network supporting a call with a second user device at a first audio bit rate;
• provide, to the second user device, an audio packet instructing use of a second audio bit rate that is different from the first audio bit rate;
• start a timer associated with receiving an indication that the second user device is using the second audio bit rate;
• receive, from the second user device and based on the audio packet, a response audio packet at the first audio bit rate;
• determine that the timer has expired after receiving the response audio packet at the first audio bit rate;
• provide, to the second user device, one or more additional audio packets instructing use of the second audio bit rate;
• determine that a threshold quantity of additional audio packets have been provided to the second user device;
• re-negotiate the second audio bit rate with the second user device based on a protocol-based re-invite message provided to the second user device;
• and
• continue the call with the second user device, at the second audio bit rate and without dropping the call, based on the re-invite message.

A method, comprising:

• receiving, by a first user device, information indicating changed network conditions for a network supporting a call with a second user device at a first audio bit rate;
• providing, by the first user device and to the second user device, an audio packet instructing use of a second audio bit rate that is different from the first audio bit rate;
• starting, by the first user device, a timer associated with receiving an indication of the second user device using the second audio bit rate;
• receiving, by the first user device, from the second user device, and based on the audio packet, a response audio packet at the first audio bit rate;
• determining, by the first user device, that the timer has expired after receiving the response audio packet at the first audio bit rate;
• providing, by the first user device and to the second user device, one or more additional audio packets instructing use of the second audio bit rate;
• determining, by the first user device, that a threshold quantity of additional audio packets have been provided to the second user device;
• re-negotiating, by the first user device, the second audio bit rate with the second user device based on a protocol-based re-invite message provided to the second user device;
• and
• continuing, by the first user device, the call with the second user device, at the second audio bit rate and without dropping the call, based on the re-invite message.