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A system for enabling music to be provided to callers placed on hold in a LAN network used for voice communications. Bandwidth consumption is minimized by ensuring that music-on-hold is provided in a manner that enables most necessary tasks to be executed by a client instead of a server. In specific

A system for enabling music to be provided to callers placed on hold in a LAN network used for voice communications. Bandwidth consumption is minimized by ensuring that music-on-hold is provided in a manner that enables most necessary tasks to be executed by a client instead of a server. In specific embodiment, the music-on-hold system is configured to transfer a small application program or applet, having a music file and a media player, from the server to the client if necessary. Concurrently, a real time protocol (RTP) stream carrying music is used to provide music to the client from the server during the applet transfer to ensure that the held caller receives music at all times. The RTP stream is initially used to provide music to held callers.

대표청구항 ▼

A system for enabling music to be provided to callers placed on hold in a LAN network used for voice communications. Bandwidth consumption is minimized by ensuring that music-on-hold is provided in a manner that enables most necessary tasks to be executed by a client instead of a server. In specific

A system for enabling music to be provided to callers placed on hold in a LAN network used for voice communications. Bandwidth consumption is minimized by ensuring that music-on-hold is provided in a manner that enables most necessary tasks to be executed by a client instead of a server. In specific embodiment, the music-on-hold system is configured to transfer a small application program or applet, having a music file and a media player, from the server to the client if necessary. Concurrently, a real time protocol (RTP) stream carrying music is used to provide music to the client from the server during the applet transfer to ensure that the held caller receives music at all times. The RTP stream is initially used to provide music to held callers. he mobile station; said second mobile station correlating said local estimated relative time difference value with a matched filter output signal; and initiating a cell search based on a result of the correlating step. 8. The method of claim 6, further comprising the steps of: said second mobile station correlating the estimated relative time difference value with a matched filter output signal; and initiating a cell search based on a result of the correlating step. 9. The method of claim 1, wherein said estimated relative time differences are used to synchronize said first and second base stations. 10. The method of claim 1, further comprising the step of storing the computed difference in a relative time difference table. 11. The method of claim 1, wherein said first mobile station is in a state of handover. 12. A method for facilitating timing between mobile stations and base stations in an asynchronous mobile telecommunications network, comprising the steps of: receiving relative timing difference data from each of a plurality of mobile stations, the relative timing difference data from each mobile station including a measured difference between the time bases of at least two base stations as measured by said mobile stations; determining a relative timing difference estimate based on the received relative timing difference data, the relative timing difference estimate representing an estimate of a difference between the time bases of at least two base stations; accounting for propagation delays between a measuring mobile station and the at least two base stations of which the time base difference is measured in said relative timing difference estimate; storing the relative timing difference estimate in a relative timing difference table; transmitting the relative timing difference estimate to a receiving mobile station. 13. The method of claim 12, wherein the relative timing difference estimate is determined by calculating a relative timing difference estimate value from a plurality of measured differences received from the plurality of mobile stations. 14. The method of claim 12 further comprising the steps of: estimating an error range for the relative timing difference estimate; and transmitting the error range to the receiving mobile station. 15. The method of claim 12, wherein the relative timing difference estimate transmitted to the receiving mobile station is used to estimate a position of the receiving mobile station. 16. The method of claim 12, wherein the relative timing difference estimate comprises the measured difference received from one of the plurality of mobile stations. 17. The method of claim 12, wherein the relative timing difference estimate transmitted to the receiving mobile station is used to assist in synchronizing the receiving mobile station with a cell. 18. The method of claim 12, wherein data from a neighbor cell list is transmitted along with the relative timing difference estimate. 19. An asynchronous mobile telecommunications system, comprising: a plurality of base stations for transmitting data to and receiving data from a plurality of mobile stations, the plurality of base stations individually receiving relative timing difference data, the relative timing difference data from each mobile station comprising a measured difference between the time bases of two of the plurality of base stations as measured by the mobile station; a register storing a relative timing difference table, each of a plurality of entries in said table comprising a relative timing difference estimate calculated from the relative timing difference data and said register storing error data for each relative timing difference estimate; and wherein a first one of the plurality of base stations transmits a relative timing difference estimate to a receiving mobile station to facilitate timing of communications between the mobile station and a second one of the plurality of base stations. 20.