Method for switching between two telephony services

When two terminals (T1, T2) communicate with each other by a first service via a network, the first telephony service is switched to a second telephony service in such a way that the two terminals (T1, T2) can continue to communicate with each other via the second telephony service. In order to carr...

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1. Verfasser: AVELINE SOPHIE,BEZIOT NATHALIE
Format: Patent
Sprache:eng
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