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Voice over IP with Patrick Ferriter
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Can I buy bandwidth from an Internet/VoIP service provider and resell it to end users? (08 JUL 2005)
I'm a small business owner in Africa and I have a number of customers wanting to make cheap international calls. Can I buy bandwidth from an Internet/VoIP service provider and resell it to end users? What sort ... What's your opinion on the MX1200? (08 JUL 2005)
I am looking for a hosted IP/PBX service solution. What's your opinion on the MX1200? Can it be divided into several partitions or domains to serve more than one customer? Can it connect to a soft switch via I... Why does my Hotfoon VoIP application keep losing connectivity? (08 JUL 2005)
We are having a connectivity problem with our Hotfoon VoIP application. When we try to ping the site, it fails and the trace-route shows packet loss in one server. Eventually it works again, but the problem re... Why is full duplex important to VoiP applications, more so than half duplex? (08 JUL 2005)
Why is full duplex important to VoiP applications, more so than half duplex? How can I differentiate who made what call on a VoIP network? (08 JUL 2005)
We currently have a Cisco VoIP system. We have another company in our office (we lease them some space) and want to be able to track their phone calls that they make - both local and long distance - so we can b... How can QoS be handled for large IP networks and what are some of the implementation challenges? (10 FEB 2005)
I keep hearing that VoIP is not a proven solution for large networks mainly due to lack of QoS in IP. Some of the vendors suggest throwing bandwidth to overcome the QoS issues. How can QoS be handled for large... What is the difference between "Internet Telephony" and "IP Telephony"? (10 FEB 2005)
What is the difference between "Internet Telephony" and "IP Telephony"? Can you give a quick over view on how SIP differs from HTTP in functionality and what are the problems of using PSTN as a back for VOIP? (10 FEB 2005)
Can you give a quick over view on how SIP differs from HTTP in functionality and what are the problems of using PSTN as a back for VoIP? What are the physical devices involved in installing a VoIP? (10 FEB 2005)
What are the physical devices involved in installing a VoIP? When designing a VoIP network that will run over a DSL network, what should the sustained bandwidth be? (10 FEB 2005)
I am in the process of designing a VoIP network that will run over a DSL network. The IPPBX's will be Avaya IP office. The codec to be used between sites is g.729a. The DSL tail circuits will be pppoATM. I am a... Are there any tricks or expected pitfalls of running radio voice traffic as VoIP through a satellite connection? (10 FEB 2005)
Are there any tricks or expected pitfalls of running radio voice traffic as VoIP through a satellite connection? Will a standard satellite connection work or do we need to go to VSAT, for example? What are all of the components needed to configure the use of VoIP? (10 FEB 2005)
What are all of the components needed to configure the use of VoIP? Specifically, if one has IP telephony, is there anything else needed? What are your suggestions to improve voice quality over VoIP? (10 FEB 2005)
I am using VoIP gateway to communicate between offices, but I am not satisfied with the voice quality. What are your suggestions to improve voice quality? Is echo inherent to VoIP? (10 FEB 2005)
Is echo inherent to VoIP? Is it possible to eliminate it? What is the minimum bandwidth requirement to guaranty a good voice quality all the time? What problems can I expect when using Vonage for our outgoing office calls using Comcast Internet cable? (10 FEB 2005)
We are considering using Vonage for our outgoing office calls using Comcast Internet cable. Will we experience the same problems often associated with satellite service or other typical DSL service? What can you tell me about implementing VoIP using Asterisk? (10 FEB 2005)
What can you tell me about implementing VoIP using Asterisk? Why does SIP use TCP? (10 FEB 2005)
Why does SIP use TCP? Who are some of the better VoIP vendors currently in the marketplace? (10 FEB 2005)
Who are some of the better VoIP vendors currently in the marketplace? Specifically, vendors who supply VoIP PBX systems? We are looking for a system capable of growing to 250 users and, initially, we wish it to... Can a video conferencing phone make a call to POTS using VoIP? (10 FEB 2005)
Can a video conferencing phone make a call to POTS using VoIP? Can a corporation lease a private international line and convert this to VoIP and use this to transmit and receive messages at a cheaper cost? (10 FEB 2005)
Can a corporation lease a private international line and convert this to VoIP and use this to transmit and receive messages at a cheaper cost? What is the VoIP future protocol? (10 FEB 2005)
What is the VoIP future protocol? Is it SIP or is it H.323? What are the reasons and benefits of the future protocol? What is the error tolerance and delay sensitivity of VoIP? (10 FEB 2005)
What is the error tolerance and delay sensitivity of VoIP? From a carrier perspective is there a natural migration path from 'Voice over DSL' to later provide 'Quality of Serice VoIP'? (10 FEB 2005)
From a carrier perspective, is there a natural migration path from 'Voice over DSL' to later provide 'Quality of Serice VoIP'? With my own VoIP gateway, how can I terminate calls through my network to the PSTN without going through a VoIP carrier? (10 FEB 2005)
With my own VoIP gateway, how can I terminate calls through my network to the PSTN without going through a VoIP carrier? Can our IP phones use the private IP address of our Asterisk server? (10 FEB 2005)
I am implementing a small 30 seat contact center. With Asterisk installed as an IPPBX, can our IP phones use the private IP address of the Asterisk server to do SIP registration so that all the outbound calls g... How can we say TCP is a reliable protocol? (10 FEB 2005)
If IP is going to carry the TCP packet, how can we say TCP is a reliable protocol? Can you help me setup VoIP services in a foreign country? (10 FEB 2005)
I am planning to setup and implement a VoIP solution to provide VoIP services in my country. What I exactly need to set up a service like Vonage or Net2Phone, for example? I would like to know the equipment I ... How do you replace a legacy PBX with IPPBX such as MX250 in a call center? (10 FEB 2005)
Our call center has IVR and a legacy PBX system. How do you replace a legacy PBX with IPPBX such as MX250? How should I connect the system back to IVR and how will the new call flow be? What, if any, are the benefits gained by using VoIP over VoFR? (10 FEB 2005)
What, if any, are the benefits gained by using VoIP over VoFR? We have experienced intermittent voice problems on VoFR. Will VoIP solve this problem and can it (VoIP) be seamlessly integrated with IP applicatio... Can an Asterisk server accumulate calls from SIP phones and then pass them on to another Asterisk SIP server which has PSTN connectivity? (10 FEB 2005)
Can an Asterisk server accumulate calls from SIP phones and then pass them on to another Asterisk SIP server which has PSTN connectivity? Also, can a SIP phone receive calls if it sits behind a NAT device? Can I connect my VoIP gateway to my network and then download softphone? (10 FEB 2005)
I just opened an Internet Cafe in Monrovia, Liberia. I am using a V-SAT to get my connection. I have five computers for e-mail and browsing. I bought a Cisco ATA 186 VoIP gateway. Can I connect it to my network... How do you connect a phone system to your IP network? (10 FEB 2005)
I am trying to set up VoIP and I'm not sure where to start. We have a T1 with 6 hunt lines coming through it. They connect to our internal phone system, a Panasonic DBS 824. We also have three stand alone analo... What do we use IPLC links and T1 links for? (10 FEB 2005)
I am a bit confused about using IPLC links and T1 links in call centers. What are these and why do we need to use both? Will VoIP work over a satellite Internet connection? (10 FEB 2005)
Will VoIP work over a satellite Internet connection? What would be involved with establishing an ITSP? (10 FEB 2005)
If I where going to establish an ITSP and chose to build my own network, what would be involved? What costs would be associated with this? Would a managed solution be a better option? When implementing VoIP, should we use a specific router on each of our remote sites or will a basic router do? (10 FEB 2005)
My organization is considering implementing a VoIP solution between a number of our sites. Should we use a specific router on each remote site (with VPN functions, for instance) or will a basic router do? What ... How can one test VoIP functionality with their existing PBX or Key system? (10 FEB 2005)
How can one test VoIP functionality with their existing PBX or Key system? What are the steps involved in designing a VoIP network? (10 FEB 2005)
What are the steps involved in designing a VoIP network, including planning, component requirements and selection, and network dimensioning? How does an echo canceller work? (10 FEB 2005)
How does an echo canceller work? How do I prioritize voice to take precedence over data on my WAN? (10 FEB 2005)
I am use a VoIP on my WAN using Nortel ASN Router and would like to prioritize voice to take precedence over data. How do I do this? Can one receive calls from a VoIP-enabled device with a non-VoIP-enabled device? (10 FEB 2005)
Can one receive calls from a VoIP-enabled device with a non-VoIP-enabled device? In order to enable VoIP, how should I set up gateways and gatekeeper on my small wireless network? (10 FEB 2005)
I have a small wireless network that includes one router and access points. In order to enable VoIP, how should I set up gateways and gatekeeper? If I want to act as my own ISP carrier for my branch offices and terminate VoIP calls to the PSTN network, do I need a T3 line or a level 5 switch to another provider that already has access? (10 FEB 2005)
If I want to act as my own ISP carrier for my branch offices and terminate VoIP calls to the PSTN network, do I need a T3 line or a level 5 switch to another provider that already has access? Which solid network evaluation product that will allow us to determine if a WAN can successfully handle both voice and data packets do you recommend? (10 FEB 2005)
I own a small telephone interconnect in northwest Iowa and we've already run into problems trying to route VoIP over a WAN that was never meant to take on the extra load of voice packets. It was already overloa... What equipment is required to set up VoIP and approximately what will it cost? (10 FEB 2005)
I will be setting up VoIP gateway with 02 Nos E1 lines. I am about to hire technical experts to configure. What equipment will be required for this and approximately what will it cost? How do you configure VoIP using a 2621XM with a VIC2-2BRI-NT/TE card connecting to a PBX over a basic rate trunk line? (10 FEB 2005)
How do you configure VoIP using a 2621XM with a VIC2-2BRI-NT/TE card connecting to a PBX over a basic rate trunk line? How does one program the Motorola VT1000 to work with other VoIP providers? (10 FEB 2005)
How does one program the Motorola VT1000 to work with other VoIP providers? I have a unit that is supposed to be unlocked, but I don't know where to put the Gk proxy and other information we put in Cisco ATA 1... Can you help me with the implementation of a MultiVoIP box? (10 FEB 2005)
I have an issue with the implementation of a MultiVoIP box behind my Panasonic Kx-t 616 Pbx . I use FXO option to connect my MVP 130 box to the extension side of the PBX. The problem is when I dial the other en... Is there vulnerability present in the proposed H.324 standard? (21 JUN 2004)
Is there vulnerability present in the proposed H.324 standard? What is the difference between Cisco call manager and Cisco SIP Proxy server? (21 JUN 2004)
What is the difference between Cisco call manager and Cisco SIP Proxy server? Is it possible to have the SIP functionality with Cisco Call manager software and if it is -- does Cisco Call Manager run on Windows...
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