| 主权项 |
1. A method comprising:
receiving, by a first user device, a call instruction associated with a second user device; selecting, by the first user device, a particular codec list from a plurality of codec lists stored by the first user device based on a selection rule and based on receiving the call instruction; providing, by the first user device, the particular codec list as part of a call negotiation process; and providing, by the first user device and using a particular codec from the particular codec list, a data flow towards the second user device via a session between the first user device and the second user device. |
