Expert Knowledgebase
Emerging Wireless Technologies (including VoIP) with Carrie Higbie
How does a softswitch connect to traditional phones (PSTN)?
(21 JUN 2004)
How does a softswitch connect to traditional phones (PSTN)?
How does a headend work?
(21 JUN 2004)
How does a headend work?
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...
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 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...
Can you tell me a bit about VLANs?
(21 JUN 2004)
Can you tell me a bit about VLANs?
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...
I was wondering if you could shed some light on the advantages of implementing Ethernet?
(21 JUN 2004)
I was wondering if you could shed some light on the advantages of implementing Ethernet?
I'm interested in learning about VoIP. Where should I start?
(21 JUN 2004)
I have MCSE, CCNA and A+ and I'd like to learn more about VoIP. I would love to be in that field. Could you please refer me to some good fundamental documents on VoIP?
What technologies are used or needed when implementing or using VoIP?
(21 JUN 2004)
What technologies are used or needed when implementing or using VoIP?
How can we develop a product which allows a call coming into a voice modem connect to someone on the LAN whose PC is running NetMeeting?
(21 JUN 2004)
Have a few questions on VoIP:
VoIP using modem:
How should one go about developing a product which allows a call coming into a voice modem connect to someone on the LAN whose PC is running NetMeeting?
...
We're trying to find the actual source and destination telephone numbers once a VOIP packet is detected on our network. Do you know how we can do this?
(21 JUN 2004)
We're trying to find the actual source and destination telephone numbers once a VOIP packet is detected on our network. Do you know how we can do this, or if there are any software add-ins that can do this? We'...
Error message - invalid domain name
(21 JUN 2004)
I am trying to run Incredimail program after a power outage and I continually get an error message: Invalid domain name - one or more messages could not be sent. What should I do?
What standards exist for VoIP?
(21 JUN 2004)
What standards exist for VoIP?
I've selected VoIP as my field for project work. Could you give me suggestions, and provide me with an idea of where to start?
(21 JUN 2004)
I've selected VoIP as my field for project work. Could you give me suggestions, and provide me with an idea of where to start?
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...
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...
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...
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...
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'...
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.
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?
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 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?
Who makes FRADs capable of SVCs?
(21 JUN 2004)
Who makes FRADs capable of SVCs? What is the current technology status for FRADs supporting SVC (Switched Virtual Channels)?
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