Harhan is proud to utilize our extensive knowledge of obscure WAN and telecom technologies and our experience with making and deploying custom CPE solutions to assist end users of Internet and other telecommunications services with procuring those services which the ISPs do not offer on their own because they lack the necessary CPE and/or the knowledge of how to deploy such.

At the present time the only major ISP with which we have a channel partner arrangement is MegaPath. MegaPath offers data and voice services throughout USA and Canada and Harhan can provide assistance with most of those services. If you are a highly technical end user who would rather talk to an engineer than a salesman, and you happen to be in a position to make use of some of MegaPath's services, if you contact Harhan first, we should be able to provide you with a very pleasant experience:

Specialty SDSL

If your geographic location happens to be somewhere in northeastern USA (major metropolitan areas between Boston, MA and Washington, DC) where MegaPath has a Copper Mountain-based SDSL network that used to be DSL.net, Harhan can set you up with two very sweet SDSL service options which to our knowledge are not available via MegaPath's direct sales or via any other channel partner because only Harhan has the necessary CPE expertise:

SDSL with V.35 hand-off

Suppose you are a power user and you already have your own exterior gateway router to which you are very partial. With a T1 line you can get a CSU/DSU CPE device instead of an integrated router, and it'll present you with a V.35 hand-off interface which you then connect to your own router under your control.

But T1s are expensive, and SDSL is much cheaper. If you are lucky to be within the geographic footprint of the old DSL.net, MegaPath offers a very very sweet deal on SDSL: the maximum speed of 1.5 Mbps symmetric costs only $75 per month!

Long before they became part of MegaPath, DSL.net used to offer SDSL with T1-like V.35 hand-off, but that was on a much older Lucent network and that service has been unavailable on their current Copper Mountain network due to lack of suitable CPE up until now. However, Harhan now has a number of SDSL-to-V.35 CPE options which work with Copper Mountain, and we are proud to have that service option available once again!

We can either set you up with one of MegaPath's old Lucent CPE units converted to the Copper Mountain flavor, or you can get the CPE directly from Harhan. In either case you need to contact us first (see below) to start the process; we would then involve MegaPath as necessary.

Bonded SDSL

Is 1.5 Mbps not enough for you? Do you need more symmetric bandwidth? Harhan's modular approach to CPE makes it possible to bond an unlimited number of SDSL loops together via MLPPP to achieve symmetric bandwidth of N times 1.5 Mbps: bonding 2 loops would give you 3 Mbps, 4 loops would give you 6 Mbps, 8 loops would give you 12 Mbps, etc. (There is no absolute limit to the number of SDSL loops that can be bonded using MLPPP and our modular CPE approach, but beyond 8 loops it gets rather messy and 8 is also the maximum number of fast synchronous serial ports that can be stuffed into a low-cost Cisco router using 4 WIC-2T cards.)

And the best part is that Harhan has figured out a way to deliver this multi-megabit bonded SDSL service to you, the end user, using MegaPath's existing Central Office SDSL infrastructure if you are lucky to be located in the geographic footprint of their DSL.net acquisition. (Harhan can check it for you if you contact us and give us your location.)

If you call MegaPath directly, they will probably try to sell you a much more expensive variant of the same thing using bonded T1s, but again if you are lucky enough to be in the DSL.net footprint, we can get you a much sweeter deal using bonded SDSL. MegaPath's SDSL services in that geographic area cost only $75 per month per loop at the maximum speed of 1.5 Mbps, so we can only assume that a bonded SDSL service made up of N such loops would be much more economical than a bonded T1 equivalent. If you contact Harhan expressing interest in such a service, we'll work with MegaPath on your behalf and make it happen.

Your CPE for this service would be provided to you directly by Harhan. Our current CPE solution for bonded SDSL consists of N SDSL-to-V.35 DSUs assembled into a single rackmount chassis with a common power supply and a single AC power plug connected via N V.35 cables to a standard WAN router with N synchronous serial ports. Harhan can provide you with a Cisco router of a suitable model and configure it for you, or you can take an NxV.35 hand-off and use your own preferred router.

In the future our HECGW 1000 product will allow you to go directly from NxSDSL (up to 4 loops) to Ethernet with a single 1U device.

Other locations

We are currently only able to offer SDSL-to-V.35 and bonded SDSL services over MegaPath's rather limited DSL.net footprint because that network is the last one remaining that uses Copper Mountain DSLAMs which serve out what we call SDSL Flavor B.

If you are located in any other part of USA, the only available SDSL last mile provider is Covad, which operates Nokia D50 DSLAMs for SDSL. Supporting their flavor of SDSL takes a little more work on our part and although we are already working on it, it isn't ready yet.

As soon as Harhan has a working SDSL CPE solution that works with Covad's flavor, we will immediately start offering the services listed above throughout USA, either through MegaPath or through other ISPs that go through Covad — there is a great number of them to choose from!

Getting started

Being a small company, Harhan does not employ anyone full time to answer phone calls. If you are interested in any of the services listed on this page, you will need to E-mail us. We will get back to you within one business day.

Other ISPs

As far as we know before DSL.net became part of MegaPath, there were other ISPs going through that network at Layer 2 much like most ISPs go through Covad. We don't know if any of those arrangements still remain now that DSL.net is part of MegaPath, but if you are one of those ISPs still going through MegaPath's DSL.net component and you would like to be able to offer the enhanced SDSL services listed above to your customers, please contact us and we'll be glad to work with you.

As far as the myriad ISPs going through Covad, we'll start contacting some of them when we have an SDSL CPE solution that works with Covad's flavor.