Methods, systems, and computer readable media for selecting a codec pair based on network conditions

A method for selecting a codec pair based on network conditions, the method comprising:

• at a network node including a first communication interface and a second communication interface:
• obtaining a first performance metric indicating a condition of a first network connected to the network node via the first communication interface, the first network including a first endpoint;
• obtaining a second performance metric indicating a condition of a second network connected to the network node via the second communication interface, the second network including a second endpoint;
• modifying a first impairment value for the first network connection according to the first performance metric;
• modifying a second impairment value for the second network connection according to the second performance metric;
• generating or updating a codec selection model based on the first impairment value modified by the obtained first performance metric and the second impairment value modified by the obtained second performance metric and based on a plurality of factors, at least one of the factors corresponding to available bandwidth or least cost routing, each of the factors assigned a weight and generating or updating the codec selection model includes taking into account each of the factors to the extent of its assigned weight;
• selecting a first codec from a plurality of codecs compatible with the first endpoint based on the codec selection model;
• selecting a second codec from a plurality of codecs compatible with the second endpoint based on the codec selection model;
• and
• utilizing the first selected codec and the second selected codec to communicate a portion of a communication session between the first endpoint and the second endpoint.

A system for selecting a codec pair based on network conditions, the system comprising:

• a first communication interface configured to interface with a first network including a first endpoint;
• a second communication interface configured to interface with a second network including a second endpoint;
• a network performance module configured to obtain a first performance metric indicating a condition of the first network and a second performance metric indicating a condition of the second network;
• a codec selection module configured to generate a codec selection model based on the obtained first performance metric and the obtained second performance metric, select a first codec from a plurality of codecs compatible with the first endpoint based on the codec selection model, and select a second codec from a plurality of codecs compatible with the second endpoint based on the codec selection model, and update the codec selection model during a call in response to a change in the first performance metric or the second performance metric during the call;
• and
• a transcoder configured to utilize the first selected codec and the second selected codec to communicate a portion of a communication session between the first endpoint and the second endpoint.

A method for selecting a codec pair based on network conditions, the method comprising:

• at a network node including a first communication interface and a second communication interface:
• obtaining a first performance metric indicating a condition of a first network connected to the network node via the first communication interface, the first network including a first endpoint;
• obtaining a second performance metric indicating a condition of a second network connected to the network node via the second communication interface, the second network including a second endpoint;
• modifying a first impairment value for the first network connection according to the first performance metric;
• modifying a second impairment value for the second network connection according to the second performance metric;
• generating or updating a codec selection model based on the first impairment value modified by the obtained first performance metric and the second impairment value modified by the obtained second performance metric;
• selecting a first codec from a plurality of codecs compatible with the first endpoint based on the codec selection model;
• selecting a second codec from a plurality of codecs compatible with the second endpoint based on the codec selection model;
• utilizing the first selected codec and the second selected codec to communicate a portion of a communication session between the first endpoint and the second endpoint;
• and
• updating the codec selection model during a call, in response to a change in the first impairment value or the second impairment value.