A system may be configured to establish a communication between a first user device and a second user device, where the first and second user devices are associated with different service providers that provide different networks with which the first and second user devices are respectively associated. The establishing may include determining capability information, associated with the second user device, without requesting the capability information from the telecommunications network with which the second user device is associated. The establishing may further include transcoding the communication based on the capability information associated with the second user device.