Samand Communications Center United Kingdom

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General office

Samand Communications Center
47 Queen Anne St.
London
,W16 9J6
United Kingdom

Phone: 0098 21 88 78 15 20
Phone: 0098 21 88 78 15 20
Site: http://www.samand.co.uk

Contact Person

Mohsen Poursadi / CEO
Phone: 0098 912 185 61 81

International VoIP Wholesale Provider

Phone To Phone
SIP VoIP Gateway
Termination

Cisco Systems
Mera
Quintum

Billing system of own development

TeleWebNetworks Inc.

EW Communications

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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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