Some examples herein can permit increasing the number of concurrent sessions that a network can support. An anchoring network device can anchor the sessions. A network gateway can transcode data of those sessions using transcoding units, and determine a utilization of the transcoding units. The anchoring network device can determine that the utilization satisfies a load criterion. The anchoring network device can adjust capability information of at least one session to reduce load on the network gateway. In some examples, the anchoring network device can send a session-change message to terminal(s) of session(s). In some examples, the anchoring network device can remove a relatively high-load codec from a codec list of a session. In some examples, the anchoring network device can adjust capability information based on predicted load.