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Emerging Wireless Technologies (including VoIP) with Carrie Higbie
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I am working on silence compression and echo cancellation in VoIP. Do I need a DSP processor to cancel out the echo at the end terminal? (21 JUN 2004)
I am working on silence compression and echo cancellation in VoIP. May I seek your advice on how to implement the compression/cancellation algorithms between two personal computers? Do I require a DSP processo... Can you tell me a bit about VLANs? (21 JUN 2004)
Can you tell me a bit about VLANs? How feasible is it to implement ATM in a low traffic area (rural area)? (21 JUN 2004)
How feasible is it to implement ATM in a low traffic area (rural area)? I have done an economic viability survey and it shows the explosive increase of mobile telecommunication in rural areas but rumors sa... What are the advantages and disadvantages of using VoIP technology over circuit switch? (21 JUN 2004)
What are the advantages and disadvantages of using VoIP technology over circuit switch? Which one of these is desirable to acquire for rural telephony? How can we create the best possible IT strategic plan? (21 JUN 2004)
My question more about "IT strategic planning." When the MIS department writes down a strategic plan they will write a 3-5 years plan, but in reality its only going to last for six months, the changes that tak... How does a headend work? (21 JUN 2004)
How does a headend work? How does a softswitch connect to traditional phones (PSTN)? (21 JUN 2004)
How does a softswitch connect to traditional phones (PSTN)? What is open and close protocol? What is the difference? (21 JUN 2004)
What is open and close protocol? What is the difference? As VoIP takes off - what factors over the last six months to a year have provided benefits which address latency and reliability concerns? (21 JUN 2004)
It appears that VoIP is becoming an approach used by call center hosting companies, replacing the need for Dialogic port cards into Media Servers/VoiceXML Gateway. However, there still seems to be concerns abo... What wireless VoIP phones are compatible with the 3Com NBX systems? (21 JUN 2004)
What wireless VoIP phones are compatible with the 3Com NBX systems? Are there several? What other companies make wireless phones? What is your opinion about the Shoreline system? (21 JUN 2004)
What is your opinion about the Shoreline system, and how does it stack up against Cisco, 3Com, Avaya? What is the best technology to use to send voice over WAN? (21 JUN 2004)
What is the best technology to use to send voice over WAN? PSTN to IP Softphones solution (21 JUN 2004)
I know that it is possible to have incoming calls from PSTN to IP Softphones but cannot find where to get numbers from and which is the most elegant solution. Your help would be most appreciated. We're using VoIP through a switch a couple hundred miles south of here. The voice quality is at times quite poor - packets are dropped and it sounds like the connection is cutting out. What's up? (21 JUN 2004)
I work for a company that uses VoIP through a switch a couple hundred miles south of here. The voice quality is at times quite poor. Packets are dropped and it sounds like the connection is cutting out and it'... Will the VoIP services to the consumer, as proposed by Qwest and SBC, require the consumer to purchase special VoIP telephones? (21 JUN 2004)
Will the VoIP services to the consumer, as proposed by Qwest and SBC, require the consumer to purchase special VoIP telephones? Will the consumer need to be re-educated with regard to the traditional sounds as... Why did Merrill Lynch disconnect their Cisco Avvid system? (21 JUN 2004)
When Merrill Lynch disconnected Cisco Avvid systems from their offices and went back with traditional TDM voice on half of their offices and Avaya VOIP in the other half of their offices... was it because the e... Detecting illegal companies that are terminating calls from Egypt (21 JUN 2004)
I'm working on a project to detect illegal companies that are terminating calls from Egypt. This happens through illegal deals signed with international carriers to terminate incoming international calls and r... Cabling project (21 JUN 2004)
I am a second year student in electronic engineering. I would appreciate if you could give me a hand with the following design. "A coaxial cable consists of a flexible inner copper (cu) conductor of diameter no... What are some differences in network cards, aside from the cost? (21 JUN 2004)
What are some differences in network cards, aside from the cost? Can you tell me how to differentiate between quality of cables? (21 JUN 2004)
Can you tell me how to differentiate between quality of cables? I'm currently working on a project where we will try to provide 100/1000 Mbps on our backbone cable and UTP 100 Mbps to our end user. The cables... What can you tell me about some low cost products like Linksys, D-link, Planet, etc? (21 JUN 2004)
I know when it comes to switches nothing is better then Cisco but the price tag is way beyond our budget. What can you tell me about some low cost products like Linksys, D-link, Planet, etc? Which of these prod... Why isn't a single fiber optic line transmitting billions of bits per seconds sufficient anymore? (21 JUN 2004)
Why isn't a single fiber optic line transmitting billions of bits per seconds sufficient anymore? Is it possible to run an ATA186 behind a SpeedTouch 510 ADSL Gateway? (21 JUN 2004)
Is it possible to run an ATA186 behind a SpeedTouch 510 ADSL Gateway? Why don't we use all the whole octec to identify an IP address? (21 JUN 2004)
Why don't we use all the whole octec to identify an IP address? For example, why does an A-class-IP address, begin with 10000000 and not 11111111? Thus, can we have more IP addresses? How do I connect DB 9 and RJ 45 sockets? (21 JUN 2004)
How do I connect DB 9 and RJ 45 sockets? I want to use both connectors at ends of my CAT5 cable
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