Sir Communications Pty Ltd. New Zealand

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Sir Communications Pty Ltd.
Mt.Roskill
Auckland
North Island ,22222
New Zealand

Phone: 6499130088

Contact Person

Shamsul Arefin / CEO
Phone: 61422672028

Hardware
International VoIP Wholesale Provider
Internet Telephony Service Provider
Internet VoIP and Video Conferencing Service Provider
Network Service Provider
SIP Billing

Call Routing VoIP Solutions
SIP VoIP Gateway
Termination

Cisco Systems
Clarent
Welltech

Proprietary

Ecofone

Providers in database: 6433

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VPMADT032 echo cancellation module is meant to be used with the Digium IP telephony boards; it provides echo cancellation for configurable long "tail" of up to 128 ms (1024 samples) simultaneously for all ports of the board. All IP-PBX Asterisk servers, connected to the telephone network (PSTN) have one common problem, which is "hybrid echo" - echo obtained due to the difference in the load-wire and four-wire telephone circuits. Echo appears as a distorted reflection and a detainee of the caller's voice, who is subscribed to IP-PBX Asterisk while talking to PSTN subscribers.

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