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exequor
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I learned that someone can increase the dialup connection speed by using two modems, two phonelines and a special program that makes it work as one connection. Has anyone ever tried or heard of this?
I think I have, it's how ISDN works.exequor said:I learned that someone can increase the dialup connection speed by using two modems, two phonelines and a special program that makes it work as one connection. Has anyone ever tried or heard of this?
Evo said:I think I have, it's how ISDN works.
Yes, ISDN is digital. BRI (basic rate interface) utilizes two 64k lines. PRI (Primary Rate Interface) is provisioned over a T1 and delivers 23 (64k) channels ("B" bearer channels) and one signaling ("D" data channel).graphic7 said:It's fairly similar, however, the key difference is that dialup modems are analog devices. ISDN is a digital, two channel (sometimes four), connection.
ISDN (Integrated Services Digital Network) is a type of service that can be delivered over either dial-up lines (2 line max) or T1. ISDN utilizes out of band signaling, which means that the 8k per channel (normally allocated for signalling ANI, DNIS, trouble shooting, etc...) can be used for traffic. A T1 in the telecom industry is just a 1.544Mb span, services like ISDN can be added to enhance functionality. An ISDN T1 normally has 23 B channels and 1 D channel, however, you can bond a small number of these together and designate 1 D channel to handle multiple T1's. The drawback to this is that if you lose the T1 with the D channel, you lose all T1's. This is where I would recommend a backup D channel.The difference between a commericial connection, like a T1, and ISDN, is that a T1 uses many more channels (12 alone for data if I recall). So, a T1 and ISDN line are very similar technologies.
Absolutely.Bottom line, ISDN is still much better than a dialup connection using multiple modems.
Actually, the telephone company does deliver one phone line per ISDN 64k channel (BRI), but the end user doesn't usually know this because we assign a fictitious telephone number, so they may not realize that they are getting two phone lines. Remember, BRI is only 128k max (two phone lines), the next jump is to provisioning ISDN over a T1 span (PRI).Edit: On a sidenote, ISDN does not require you to have multiple "lines" per every 64kbps channel, unlike the dialup solution to having multiple "channels."
graphic7 said:ISDN is a digital, two channel (sometimes four), ."
evo said:ISDN is digital. BRI (basic rate interface) utilizes two 64k lines
evo said:the next jump is to provisioning ISDN over a T1 span (PRI).
Correct, 3 channels for BRI (2B+D) B1 & B2, for 128k (most common and the maximum BRI is delivered at) there would be 2 phone lines. There is 64k BRI which is 1B+D, not ordered very often anymore, but I still have clients using it. ISDN BRI isn't used much anymore, PRI T1 is used mainly for PBX feature functionality, not for data transmital much anymore, it's too cost prohibitiveAnttech said:ISDN BRI is 3 channels not 2 or 4...
1 signaling
2 data/voice
ISDN BRI is designed and delivered with 128k max. The next step up is ISDN PRI T1. You can purchase equipment that can "bond" multiple BRI's, but that doesn't change the BRI itself. Tying a bunch of water hoses together can deliver more water, but you are not changing the individual capacity of a single hose.Why do you say that? You can have as many ISDN BRI's as you like coupled together?Evo said:the next jump is to provisioning ISDN over a T1 span (PRI).
Also, for practical and financial reasons T1 is a better solution if you're needing significantly more bandwidth.
There is no way to give a short answer. Depends on what you are trying to do. You typically wouldn't want to use ISDN BRI for voice calls because you pay a lot more for ISDN usage than regular voice usage. But there are a lot of "ifs" it depends if local use is metered or flat rate. It depends on how your provider bills, if the call is sent out as ISDN or not. In this part of the US we will not provide DID's over ISDN BRI, it's not a tariffed offering, or if it is, it is so outrageously expensive, it's never sold. (I will look into the tariffs if i have time) (our non T1 offering for DID's is $100/mo per trunk, with a limit of 1 DID per trunk at a time, so if you want it to roll over to another trunk, it's another $100/mo) I actually have a client that has this on Plexar and I am moving him to a T1 for a huge savings.Anttech said:Not for teleco its not, if you only need approx 5 voice conversations at the same time you arent going to buy 1 T1/E1 you will typically buy 5 BRI and spread a DID range over them, so the person dialing in will only hit you on 1 number... and be round robined on the trunks...It is seamless
MPLS is utilized in WAN's here, it is not something ordered on an individual T1. The benefit is full meshing without multiple PVC's and QOS for voice/video/data. But it is over a network. MPLS is the big buzzword in networks, but traditional frame/ATM makes more sense $$ wise if your network is spoke & hub and you're not doing VOIP over the network. Voice over frame works fine and dialtone can be delivered as an FXS line to an old key set by adding a VIC to the router.Large corporate companies still use T1/E1 becuase it is typically more rubust than other technologies. There are newer more robust technologies like MPLS but it's even more expensive than T1/EI (Do you have this state side yet?)...
Yes, DSL is too unreliable and doesn't have the same performance SLA's (longer down time in the event of a repair issue)Dsl won't cut it when you have 2000 People trying to connect to WAN services
(our non T1 offering for DID's is $100/mo per trunk, with a limit of 1 DID per trunk at a time, so if you want it to roll over to another trunk, it's another $100/mo) I actually have a client that has this on Plexar and I am moving him to a T1 for a huge savings.
but traditional frame/ATM makes more sense $$ wise if your network is spoke & hub and you're not doing VOIP over the network.
Voice over frame works fine and dialtone can be delivered as an FXS line to an old key set by adding a VIC to the router.
exequor said:Well since I can't get ISDN or DSL in my area (I guess if I could have, I would have done it already), is there someway that I can get some ISDN equipment and use it for a dialup connection? I only asked that question because I don't know if on the server's side this is possible/impossible.
brewnog said:You shouldn't need the ISDN equipment. You can do it with two modems, and two normal phone lines. You just bridge the connections together in Windows (or whatever).
I think we're hijacking the thread.
Your ISP must support synchronization of multiple modems.
Yes, your post was spot on...which is why you don't really see anyone doing this.Anttech said:well... if your isp will allow 2 dial-ups to be linked to 1 ip address it will work, if not then I can't see how it would be of any use
Thats what I was getting at in my last post... typically you get 1 IP address per dial up, not 1 across multiple dial ups
To double or triple your dialup connection, you can use a process called dialup bonding. This involves using multiple dialup connections simultaneously to increase your overall internet speed. You will need special software and hardware to set up dialup bonding.
The main benefit of doubling or tripling dialup connections is increased internet speed. This can be especially useful for tasks that require a lot of bandwidth, such as streaming videos or downloading large files. It can also make browsing the internet and loading web pages faster.
No, it is not possible to double or triple dialup connections without special software and hardware. Dialup bonding requires the use of a special device called a dialup router, which combines the multiple connections into one. Without this equipment, you will not be able to achieve a bonded connection.
Yes, dialup bonding can be used with any type of dialup connection, including traditional dialup, ISDN, and DSL. However, it is important to note that the type and quality of your dialup connections will affect the overall speed and performance of your bonded connection.
One potential downside to doubling or tripling dialup connections is the cost. You will need to invest in special software and hardware, which can be expensive. Additionally, the more connections you bond, the higher your monthly internet bill will be. It is important to weigh the cost against the potential benefits before deciding to double or triple your dialup connections.