Ask the Experts
Ask the Experts
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How does an ATA work?
How does an ATA work? Continue Reading
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What are the advantages and disadvantages of MPLS?
Learn the advantages and disadvantages of MPLS in this expert response from our telecommunications expert. Continue Reading
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How many calls can a T1 handle and what is bandwidth of each call?
Our site member is planning a VoIP implementation at his company. He asked, "How many simultaneous calls can be handled by a T1 and what is the bandwidth for each call?" Get the expert answer here. Continue Reading
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Hardware and software required to set up basic VoIP service
Get details and resources to find the hardware and software you will need to set up VoIP at your company. This basic overview offers information on IP/PBXs, SIP equipment, IP phones, Softphones and E911. Continue Reading
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Nice Logger explained
Learn what Nice Logger is and what types of telephony cards it supports in this expert answer. Continue Reading
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What is tromboning?
In this expert reply, Patrick Ferriter explains what tromboning means in VoIP. Continue Reading
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Understanding customer acceptance
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DHCP lease renewal on IP phones
Learn how to handle DHCP lease renewal on IP phones in this expert response. Continue Reading
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Comparing IP with ATM networks
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Difference between data communications and IP based solution
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ADSL bandwidth
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Difference between gateway and router
Learn the difference between a gateway and a router in this Ask the Expert response. Continue Reading
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What exactly is SIP and what are its advantages and disadvantages?
Learn about the advantages and disadvantages of choosing SIP over H.323 or another VoIP traffic carrier. Continue Reading
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We want to use VoIP over the LAN without PBX hardware. Any suggestions?
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VoIP gateways and SS7
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I'm confused about the term "IP Centrex." Can you explain?
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What is the difference between gateways and gatekeepers?
Learn what the difference is between a network gateway and a gatekeeper in this Ask the Expert response. Continue Reading
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What is the difference between Cisco call manager and Cisco SIP Proxy server?