We specialise in the installation, configuration and maintenance of all sizes and types of Asterisk, VoIP, IP PBX, and Billing solution from basic small-business systems to enterprise-based solutions.
Denphone K.K. is Japan's leading provider of open PC based VOIP Telephone PBX systems. Our PBX and telephony solutions are based on the Asterisk open source telephony architecture, and provide advanced features such as voicemail and conferencing as standa
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