DDI2.net delivers you a worry-free experience to VoIP Internet Telephony.
DDI2.net delivers you a worry-free experience to VoIP Internet Telephony.
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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