We specialize in used & refurbished business phones for existing phone systems


Avaya Partner Phone

The Avaya Partner Phone has been around for a while now and are still am amazing business phone.  The reliable Avaya Partner Phones have a variety of features including speakerphones, caller ID, the ability to transfer, intercom, and page.  The Avaya Partner Phone system will work with whatever phone service provider you have, whether it is traditional phone lines or you decide to go to a cable company for phone service.  

If you need replacement Avaya Partner phones please do not hesitate to contact us at 800-396-9699.

To View our Avaya Partner Phones click here!

Avaya Partner Phones


M7310 Phones

Manufactured by Nortel, the M7310 phones offer versatility and easy functions for every day office users.  The twelve buttons located on the top of the phone have a few different uses.  One way to use them is to program them for in-office speeddial, so one touch dialing to reach a colleague. Another way to make your M7310 phone work for you is to use those buttons for out-of-office speeddial.  If there is a vendor or client you call frequently, just press that button and you are on your way.  

The M7310 phones can be programmed for 1 incoming phone line up to 10.  The colored button caps pop on and off, so you are able to alter your phone's appearance for your company's specific need.  I would say most commonly businesses use either 4 or 6 lines when operating the M7310 phones.  

M7310 Phone
Can I Transfer Calls From My Wireless Headset?

Can I Transfer Calls From My Wireless Headset?

Here at Business Telephone Sales we sell both wired and wireless headsets.  Obviously if you are on a wired headset you are connected to your telephone and able to transfer calls like normal using your phone.  Regarding the use of ANY wireless headset with a business system, the headset user has no remote access to any functionality of the telephone other then answering and hanging up. Any dialing, transferring of calls, or even putting someone on hold must be done from the telephone set itself (although the headset does have a mute button and volume control).

Current Headsets Available Click Here

Phone Headsets

My Handset Keeps Falling Off My Merlin Phone on the Wall...

There are two ways to use your AT&T Merlin phone.  One is the traditional way where the phone is sitting on your desk using its normal desk stand.  Then there are those times you need to hang your Merlin phone on the wall.  Many Merlin customers are unsure of how to keep the handset from falling off when they hang their phone up.

It is easier than you think and just takes a few minutes and flat head screwdriver.  Follow the steps listed below, and you should be all set.


1.  Remove handset from phone.

2.  Find area code plastic and paper (the white bar located under the handset).  Remove.

3.  Use flat head screw driver to remove screw.

4.  Take tab out, remove screw from tab.

5.  Flip tab 180 Degrees and put back in phone, you should have it sticking upwards and kind of outwards.  Once it is in correctly, reinsert screw.

6.  Replace white area code paper and clear plastic. 

Now your handset will not fall of when your Merlin phone is hanging on the wall.

Where did Nortel Go?

Here at Business Telephone Sales, we sell Nortel phones.  However, we are a reseller of their older, discontinued products. We buy old ones, take them in and refurbish them to resell.  This does not make us Nortel.  Every day we get calls asking if we are Nortel or how to get in touch with Nortel.  I am sad to say Nortel went out of business years ago.  While they were Canada's biggest telecom communications company, they were just not able to survive.  An American company, Avaya, bought out most of Nortel's products.  They are manufacturing some of Nortel phones and silk screening it with an Avaya logo (for example the used to be Nortel T7316e is now Avaya T7316e).

So, if you have a Nortel phone system and need technical help, there is no clear cut way to find it by contacting the manufacturer directly.  You can attempt to call Avaya, but more than likely they will not assist.  If you need someone to come to your location, to troubleshoot, to reduce number of rings to voicemail, etc.  your best bet is to find a local instalelr to see about helping with your immediate needs.

One way to find a local installer is to go to and put in your zip code.  Then call around and explain your needs and ask what they charge.  You may want to call a few places just to get different quotes. If you need replacement parts, like Nortel phones, Nortel systems, or Nortel Voicemails we can assist with that!

Avaya T7316e Phone

Free Manuals

Need to change the time on your clock?

This website has free pdf files you can download that will instruct you how to change the time on your clock.


Free Phone Manuals

Internet and the Savvy Shopper

Buying online has been taking off and taking over for the last few years.  You can go on Facebook to see your friends, but then there are ads off to the side or promoted ads that are to get you to buy something you  have been looking at, like booking a trip and now all the sudden you are seeing hotels following you as you browse the Internet.

Now Social Media is also helping customers make better decisions on purchases along with finding the best deals.  While this is amazing on so many different levels, it also can continue to add to our disposable society and keeping up with the newest greatest thing or technology that will be replaced any second.

This is happening to businesses and business phones.  Here at Business Telephone Sales we get calls every day from customers who are switching their phone service and need a phone for their business.  The phone company is not giving them any specific information, just saying go buy a phone. Most business phone systems are designed to be very specific.  You must have a controller that the phones connect to, and there are compatibility issues. When looking to buy phone equipment, please call and ask any questions before hand as I am sure it will save you trouble down the road.

The phones we sell will work with any phone service provider whether it is a traditional phone line from AT&T to a cable line from a company like Comcast.  However, you still need the actual phone system (brains/ksu) to run the system which connects to the phone service provider's box, and then of course you will need the phones.

One of the perks to getting a phone system like this is the phones work together as a team.  Meaning you can put one person on hold and pick it up at another location.  You can page, intercom, transfer and even forward offsite depending on what system you have.  The multi-line phones you buy in stores like Staples and Best Buy do not have these features and often disappoint. 

Any questions, call us at 800-396-9699 and we will help build the perfect business phone system for your needs.

Question - I have a Spirit Phone System, do I have to use a Spirit Phone?

Question - Currently, I have a Spirit Communications System 308/616 phone system set up in my office and need new phones.  Can I plug in any ordinary phone with this system to work or do Spirit phones only work with this system?  

Answer - No, you cannot plug in just any phone and it work. The AT&T Spirit phone system was made that only Spirit phones will work.  You can use either the 6 button or 24 button phones and get them in either cream or black, but any other phone you try on the system will appear as defective or dead.

Question - How do I add a Station Card to a Merlin Plus System?

Question - I have a Merlin 820D2 with one station card.  Will I need to do any re-programming if I add a second station card or do I just power down the unit, add the card, and then power the unit back up?

Answer - Yes, That is all you have to do, then you will add on 10 more stations, no more programming necessary.

Over 20 Years Selling Refurbished Telecom


Back in the summer of 1996 Business Telephone Sales opened its doors in (at that time) a small town called Riverview, FL.  Since then we have been holding strong selling refurbished business telephones.  The industry has changed a lot in the last twenty years. Even with the internet and our domain,, business was mostly conducted between us and phone installers across the United States.  Advertising was mostly done through trade magazines, such as the Telcom Gear and The Mart. Our website kept evolving and went from an informational contact us to make a purchase site, to a full blown eCommerce site accepting all major forms of credit cards over 10 years ago. Now Business Telephone Sales sells directly to the very companies that will be using them.  Throughout this time, Business Telephone Sales has maintained its low prices and excellent quality to all of our customers.  Some of whom have been with us since the beginning, and the new ones we get daily.

Now located in Venice, FL (had to make it closer to the beach), we are still selling quality refurbished phone equipment at very low prices.  We are so happy that we have been able to server over 85,000 customers and will continue to do so.


Business Telephone Sales

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