Abstract: A system for enhancing tonal quality for ringback signals in a telecommunications network by adjusting audio processing during an alerting interval of a telecommunications session (e.g. during a telephone call). The system may be embodied in a telecommunications switching device and include a ringback manager process that provides the ability to adjust audio processing (e.g., by signaling to in-path equipment) which enhances the tonal quality of the ringback signal. As an example, a telephone system (e.g. equipment associated with establishment and operation of telephone communications sessions) can disable or attenuate operation of voice quality enhancement processing such as echo cancellation, noise reduction, adaptive level control, and the like, during the ringback or alerting interval or period of a telephone call so that the ringback tone provided to the calling party is not distorted by such processing.

Abstract: Request information received by a call handler system specifies multiple acceptable call connection encoding options or formats for communicating with a caller. The call handler system forwards the multiple acceptable call connection encoding options to a called destination. The called destination responds with a selection of a first call connection option from the multiple call connection options. The call handler system selects a second call connection option for providing a ring-back tone to the caller while waiting for the called destination to answer his phone. During the wait, the call handler system provides a ring-back tone to the caller via the second call connection encoding option. Upon detection of the called destination answering his phone, the call handler system discontinues playback of the ring-back tone and notifies the caller to communicate with the called destination via the first call connection encoding option as selected by the called destination.

Abstract: Conventional video call attempts encountering a device inoperable according to a desired capability will fail if the receiving device is unable to complete the call at the desired service level (i.e. video). In addition to frustrating the communication attempts between users, another issue is that resources consumed in the attempted but failed exchange are not recoverable, since the call never completed. Accordingly, configurations herein substantially overcome such shortcomings by providing a fallback mechanism that identifies a service level operable by both the initiating device and the receiving device, and completes the call at a lower service level operable by both devices. The disclosed approach allows a call to complete at an alternate service level (i.e. voice instead of video) rather than failing the call completely, resulting in a source of lost revenue to the service provider (operator).

Abstract: A ring-back tone generator system provides a customized ring-back tone to a calling party (attempting to reach a called party) while the ring-back tone generator system participates in alerting the called party of the call connection request. Upon acceptance of the call connection by the called party answering his phone, the ring-back tone generator system can temporarily bridge the caller party with the called party. After at least temporarily providing the bridge, the ring-back tone generator system communicates with a remote phone switch system for purposes of offloading the bridge to a remote device that instead provides the bridge between the caller and the called party. Accordingly, the ring-back tone generator system can participate in a process of providing a customized ring-back tone to a caller, initiate alerting of a called party of the call, bridging a call, and a handing off a call.