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Posts Tagged ‘dial-up modems’

Coming soon…The SR-3 Selective Ring Call Router

Friday, March 18th, 2011

After two years out of the Multi-Link product line up, The SR-3 call router is returning to production this year.

The SR-3 call processor is a passive line-sharing device that routes incoming phone (POTS) calls based on the “selective ring” service from the local telephone company. The SR-3 differs from the rest of Multi-Link’s line sharing switches that actively answer and route calls. The bottom line is the same—the main benefit is reducing phone lines and the monthly cost.  Because the SR-3 routes in this manner, it can be used with common telco call packages that offer voice mail, call forwarding,  and TTY/TTD.

The SR-3 routes up to three numbers per line.  The selective ring service goes by different names depending on the phone service provider, and this service must be activated for the SR-3 to route properly. Typical cost for a selective ring phone number is $5 per month.

The SR-3 works on a standard POTS line and does not go “off hook” to screen but routes to the appropriate port based on the signature ring pattern for each phone number assigned to a single phone line. The primary phone number routes to port one, secondary number to port two, etc. Multi-Link’s “Smartware™” technology eliminates any user programming by automatically learning the ring cadence. Operation is totally automatic. The barge-in protection feature is optional. Outbound calls are processed in the normal fashion.

For SOHO applications, the SR-3 allows a phone and fax machine to share a single phone line while using different numbers. One phone line can be used for home and business, with automatic routing. Only home phones will ring when the home phone number is called, and business calls are directed to the business phone or fax.

Past users of the SR-3 will notice a new sleeker cabinet, but the functionality is exactly the same. We are now taking pre-orders for the SR-3 and expect to start shipping in April. Call 800-535-4651 with any questions.

A Dedicated Phone Line for Postage Meters is Wasteful

Thursday, January 6th, 2011

If your business spends more than $50 a month in postage, chances are you are leasing a postage meter and benefit from convenience, reduced expenses, and time savings. Typically, money savings from using a postage meter average around a 20% per month, due largely to the ability to weigh and meter accurately. Authorized providers of postage meters include Pitney-Bowes, Neopost, Data-Pac, FP Mailing Solutions, and Hasler.

Chances are, like us, you are using the market-leader Pitney-Bowes. We employ a MailStation 2 with great results. Recently I had to update postage rates and download postage funds via modem. It only took about 10 minutes to accomplish. Curious about a technical question, I reviewed the user manual for the answer. While I was thumbing through it, I discovered something curious. In a section named Using an Analog Line to Establish Connections, it states Use a dedicated analog phone line if possible (one that is not shared with other devices) to avoid possible issues.” Whoa, now— a $50/month phone line?

Being a manufacturer of line-sharing devices aside, Multi-Link , like all businesses, has to watch every expense. It would be counter-productive for us to save money on postage on one hand, and then just use the savings to pay for an additional phone line used just once a month, or even three months, for 10 minutes at a time! How many other companies can afford to pay that?

Installing the postage meter on a line-sharing device like The Stick would take only minutes, and the barge-in protection feature would keep any other telephony device, say a fax, from interfering during a download—and vice versa. Throughput speed is not diminished, and no PC interface or software upgrades are needed. Just plug and go. Take a look at the simple diagram below.

Hopefully, this will make your office manager very happy. (E)mail us with any questions on this or any other application: marketing(at)multi-link.net


Affordable, More Secure Out-of-Band Network Management

Wednesday, September 29th, 2010

The majority of Multi-Link’s phone/data line-sharing devices are being installed for out-of-band dial-up modem access to communication and data networks.

When the network is down and normal in-band access is denied, how do you recover the network equipment? Out-of-band remote access to serial console ports provides an efficient back door method for recovery. This can be through the use of a backup dial-up modem via the Public Switched Telephone Network (PSTN).

Serial console ports are the most reliable and dependable form of communication for equipment management. That is why most high value networking devices have one. Whether it’s a router, switch, firewall, PBX, network storage device, etc, no matter what is happening with the device, the serial auxiliary or console port is always up and running. It is a trusted way to find out what is going on and the quickest way to recovery.


POLNET ACP Phone/Data Line Sharing Switch

Polnet ACP Phone/Data Line Sharing Switch

The ACP saves money for IT departments by eliminating costly phone lines dedicated for out-of-band dial up access to remote network equipment. Fixed telecom costs are dramatically reduced and a 3 month R.O.I. is typical. In addition to savings, the ACP is engineered to provide an additional layer of security to connected devices. Vulnerable pathways to equipment via the PSTN are protected by programmable Security Access Codes up to seven characters. There are over 35 million combinations to choose from, effectively creating a telephony firewall for dial-up connections.

Furthermore, our Remote Power Control products, The Power Stone and the IP Power Stone 3000, are invaluable tools for rebooting unresponsive equipment in remote areas. The Power Stone is a phone call activated AC power controller used to reboot and power up/down remote equipment. The IP Power Stone 3000 provides the ability to reboot locked-up equipment via web browser.

Either of these remote reboot products makes a perfect complement to the Polnet ACP, providing inexpensive, secure control of remote network equipment.

ACP deployed for remote out-of-band access

Coming to a theater near you…a Stick?

Tuesday, July 13th, 2010
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Line sharing for projector application

Behind the scenes at your local movie theater, there is a lot going on to maintain a cinema projector. As with most high tech equipment, software updates are needed to optimize performance and remotely calibrate operation settings from time to time. Cinema projectors are no exception to this rule.

However, remote connectivity comes at a cost.  As is evident in other industries, many times broadband access is not a financially viable solution for movie theaters given the upfront equipment cost and monthly service expenses. The dial-up modem is a cheaper alternative but monthly dedicated line costs are a factor to consider, especially with multiple locations. Phone line sharing switches can resolve the monthly costs and allow for secure access to remote equipment, like projectors and digital signage.

A single phone can cost $600/year. Hence, a business (theater) with 50 locations, eliminating one line per location, will save $30,000 per year in telecom costs! That’s a lot of popcorn— hint: LARGE is the best value :) . The Stick, or Polnet ACP, is an ideal solution for this application.


Other Remote Media Applications:

Classrooms and Auditoriums
Advertising & Digital Signage
Network Operations Centers (NOCs)
Video Walls
Corporate Conference Rooms
Conference Center Venues

Add Oil Tank Level Detectors without Adding Phone Lines

Monday, June 21st, 2010

New restaurant industry applications are always of interest to Multi-Link because of our long-standing, personal relationships with members the restaurant community. Recently we discovered a new cost-cutting system for frying oil management from Restaurant Technologies, Inc. (RTI) that deserves mention. RTI has developed MaxLife™ Total Oil Management System that is being employed by many restaurant businesses and current Multi-Link customers.

MaxLife is an automated solution for storing, handling, and disposal of cooking oil. RTI touts reduced oil consumption and labor costs, enhanced safety, and compatibility with existing fryers. One convenient feature is “telemetry-managed fresh oil deliveries and waste oil pick-ups” which is monitored through dial-up modem installed on-site.

Current Multi-Link customers that have our line-sharing switches (The Stick, ACP) installed are able to immediately benefit from this remote fryer oil monitoring without the hassle of ordering a dedicated phone line from the telephone company. The on-site modem is simply plugged into an available device port. More importantly, no additional monthly costs for a dedicated phone line are incurred. It is a perfect match of cost-cutting products.

Click here for a demo of MaxLife™ and feel free to send along anymore applications like this for review to marketing@multi-link.net . We love to save money for our customers!

Phone Line Sharing: Top 5 Applications

Monday, April 19th, 2010
1. Point-of-Sale system integration
2. Remote out-of-band access for network equipment
3. Automated meter reading
4. Fuel tank monitoring
5. Small Office/Home Office phone line consolidation

1. POS systems in fast paced retail environments typically use broadband for transaction processing. In many cases, dial-up modems are used as back-up in case of a network outage. Paying for a dedicated phone line for emergency use only is costly and wasteful. Multi-unit restaurant and department store chains save thousands of dollars annually by installing a line sharing device with a fax line and POS back-up line and significantly reduce fixed telecom costs. In a scenario with fewer POS transactions (only a few per day), a dial-up line is more economical. Sharing this line with a fax or phone is a practical way to lower overhead costs while processing sales normally.

2. When the network is down and normal in-band access is denied, how do you recover the network equipment? Remote Out-of-band access to serial console ports provides an efficient back door method for recovery. This can be through the use of a backup dial-up modem via the PSTN. However, paying for a phone line that you hope you never use is expensive.

Phone line sharing saves money for IT departments and MNS groups by eliminating costly phone lines dedicated for out-of-band dial up access to remote network equipment. Fixed telecom costs are dramatically reduced and a 3 month R.O.I. is typical. In addition to savings, the Polnet ACP is engineered to provide an additional layer of security to connected devices. Vulnerable pathways to equipment via the PSTN are protected by programmable Security Access Codes up to seven characters. There are over 35 million combinations to choose from, effectively creating a telephony firewall for dial-up connections.

3. Automated meter reading, or AMR, is the technology of automatically collecting consumption, diagnostic, and status data from energy metering devices (water, gas, electric) and transferring that data to a central database for billing, troubleshooting, and analyzing. This advance mainly saves utility providers the expense of periodic trips to each physical location to read a meter. Further savings can be achieved by sharing a POTS line for dial-up modems with multiple on-site meters and RTU’s. Installing nine devices on one phone is more cost effective than having nine individual lines to pay for.

4. Fuel tank monitoring is a method by which underground fuel tanks are measured for capacity and leak detection. Multiple modems connected to gauges can be accessed with only one phone line with a phone line sharing device. C-stores are a prime user as well as industrial fueling stations for commercial, government, and military use.

5. SOHO’s have always been a major consumer of phone line sharing. The basic set-up of the home office has remained unchanged over the years with the phone, PC, and ubiquitous fax machine, or all-in-one with fax capability, as the essential business tools. Phone line sharing devices such as The Stick have been equally important, helping to save the small business owner as much as $600 a year just by consolidating the fax and phone on the same line.

Are Your Remote Site Modems Secure?

Sunday, January 24th, 2010

The widespread use of modems is driven by the need for for vendor support, polling, configuration of remote devices, and for providing remote connectivity to remote systems for engineering and IT support. However, modems represent an often overlooked backdoor to control systems and networks that can be exploited by hackers.

In a publication by Homeland Security’s National Cyber Security Division, “Recommended Practice for Securing Control System Modems”, methods for securing dial-up modems are addressed. It states that, ” In general the dial-up PSTN is the least secure as it exposes a modem to the equivalent of world-level Internet access. As a result, this communication point can be accessed from anywhere in the world by anyone with a modem and may be vulnerable to attack.

One security method presented in the paper is a telephony firewall. All of Multi-Link’s line sharing devices, in addition to cutting costs, allow the end-user to secure access to telephony devices with programmable security access codes(SAC). These SAC’s can be configured differently for each port. Our most robust product from a security standpoint is the Polnet ACP with 7 digit SAC’s that would effectively provide a stand-alone firewall for dial-up modems.

Another method for controlling connections is to control its power supply, powering up the modem for use and then powering down when access is no longer required. The Power Stone is ideal for this procedure with its automatic power-on-call feature. Devices plugged in to the Power Stone can be turned on for the duration of the call and turned off after disconnect. SAC’s are used for manual operation and remote programming.

It is highly recommended to audit and document all known modems and faxes for the purpose of not only cost reduction, but for the sake of closing any backdoors into a company’s telecom and IT networks.

Top 5 applications for Phone Line Sharing

Wednesday, December 23rd, 2009
  1. Point-of-Sale system integration (Primary and back-up datacom channels)
  2. Remote out-of-band access for network equipment
  3. Automated meter reading
  4. Fuel tank monitoring (C-store and industrial fueling stations)
  5. Small Office/Home Office phone line consolidation

1. POS systems in fast paced retail environments typically use broadband for transaction processing. In many cases, dial-up modems are used as back-up in case of a network outage. Paying for a dedicated phone line for emergency use only is costly and wasteful. Multi-unit restaurant and department store chains save thousands of dollars annually by installing a line sharing device with a fax line and POS back-up line and significantly reduce fixed telecom costs. In a scenario with fewer POS transactions (only a few per day), a dial-up line is more economical. Sharing this line with a fax or phone is a practical way to lower overhead costs while processing sales normally.

2.  When the network is down and normal in-band access is denied, how do you recover the network equipment? Remote Out-of-band access to serial console ports provides an efficient back door method for recovery. This can be through the use of a backup dial-up modem via the PSTN. However, paying for a phone line that you hope you never use is expensive.

Phone line sharing saves money for IT departments and MNS groups by eliminating costly phone lines dedicated for out-of-band dial up access to remote network equipment. Fixed telecom costs are dramatically reduced and a 3 month R.O.I. is typical. In addition to savings, the Polnet ACP is engineered to provide an additional layer of security to connected devices. Vulnerable pathways to equipment via the PSTN are protected by programmable Security Access Codes up to seven characters. There are over 35 million combinations to choose from, effectively creating a telephony firewall for dial-up connections.

3. Automated meter reading, or AMR, is the technology of automatically collecting consumption, diagnostic, and status data from energy metering devices (water, gas, electric) and transferring that data to a central database for billing, troubleshooting, and analyzing. This advance mainly saves utility providers the expense of periodic trips to each physical location to read a meter. Further savings can be achieved by sharing a POTS line for dial-up modems with multiple on-site meters and RTU’s. Installing nine devices on one phone is more cost effective than having nine individual lines to pay for.

4. Fuel tank monitoring is a method by which underground fuel tanks are measured for capacity and leak detection. Multiple modems connected to gauges can be accessed with only one phone line with a phone line sharing device. C-stores are a prime user as well as industrial fueling stations for commercial, government, and military use.

5. SOHO’s have always been a major consumer of phone line sharing. The basic set-up of the home office has remained unchanged over the years with the phone, PC, and ubiquitous fax machine, or all-in-one with fax capability, as the essential business tools. Phone line sharing devices such as The Stick have been equally important, helping to save the small business owner as much as $600 a year just by consolidating the fax and phone on the same line.

What’s your favorite application? Have another one you would like to share with us? Post a comment or drop me a line — sshelton@multi-link.net

Happy Holidays!