Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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65/00
Network arrangements, protocols or services for supporting real-time applications in data packet communication
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H04L65/10
Architectures or entities
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H04L65/1053
IP private branch exchange [PBX] functionality entities or arrangements
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