THECALLMASTER Pakistan

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General office

THECALLMASTER
Suite # 702, 7th Floor Marine Faisal
Karachi
Sindh ,75500
Pakistan

Phone: 923002266036
Phone: 923002266036
Site: http://www.thecallmaster.com

Contact Person

Muhammad Arsalan / Director
Phone: 923002266036
Phone: 923002266036

Hosted VoIP billing service provider
International VoIP Wholesale Provider
Internet Telephony Service Provider
Voip Termination ISP

Call Routing VoIP Solutions
E1 Bulk Wholeseller
Gatekeepering
H.323 Softswitch & CPE
H.323 VoIP Gateway
H.323 Wireless/ GSM VoIP Solutions
Installation and Support Services
IP devices
Partnering for Origination and Termination
PC to Phone
Phone To PC
Phone To Phone
SIP Softswitch & CPE
SIP VoIP Gateway
System Integration
Termination
Web Call
Web To Phone

Quintum

another
Billing system of own development
Custom Open Source Billing Solution

THECALLMASTER

Broad Vision

Providers in database: 6433

Echo cancellation module VPMADT032

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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