Patent ID: 8660551
Filing Date: 2014-02-25
Classification: H04L,H04W

Abstract:
1. A method comprising: storing, by a Serving-Call Session Control Function (S-CSCF) device and in a codecs storage component stored by the S-CSCF device, information identifying a first device in association with a first list of codecs that the first device supports, receiving, by the S-CSCF device and from a second device, a call request message to establish a call after storing the first list of codecs in the codecs storage component, obtaining, by the S-CSCF device and based on the information identifying the user, the information identifying the first device; determining, by the S-CSCF device, that the information identifying the first device is stored in the codecs storage component; retrieving, by the S-CSCF device and based on determining that the information identifying the first device is stored in the codecs storage component, the first list of codecs from the codecs storage component; identifying, by the S-CSCF device, a particular codec in the first list of codecs to be used to establish the call to the first device; and establishing, by the S-CSCF device and after identifying the particular codec, the call to the first device by using the particular codec.