Siemens Communications, Inc.

Zeno Staemmer

Andrew Mason

A telecommunication system has capabilities for managing conference telephone calls. Cellular telephones may be registered to the system and may be used as contact devices in setting up conference telephone calls. When a cellular telephone is participating in a conference telephone call and drops out because, e.g., of lost signal, the system may automatically initiate a call back to re-connect the cellular telephone to the conference telephone call.

Apparatus and method for restoring a conference connection to a cellular telephone

A method, system, and article of manufacture for restoring a telephone connection between a first communication device and at least one other communication device. In some embodiments, the method includes establishing a first telephone call between a first communication device associated with a telecommunication system and at least one other communication device, initiating a call to the telecommunication system from the first communication device using a predetermined number, and automatically initiating, in response to the call to the predetermined number, a reconnect call by the telecommunication system to establish a second call between the first communication device and the at least one other communication device. In some embodiments, the first call and the second call may be between a first communication device and at least two other communication devices.

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Thalwil, Switzerland

Zeno Staemmer