Meridian Phone Madness: How to Identify Your Meridian Telephone

By Bob Mrozinski

History 1876 � Alexander Graham Bell invents the telephone, beating Elisha Gray by a matter of hours.

Meridian means many things to many people. When people tell me they have a Meridian phone, they feel like they have fully identified their product and that our discussion can spring forward from there. Not so.

Unfortunately, Nortel and Northern Telecom used ‘Meridian’ across much of their product line. If you have a Northern Telecom or Nortel phone system in your office, it may say Meridian on it. You still need to figure out what the real model number is as well as what system it is running on.

Nortel Networks, Nortel and Northern Telecom have made Central Office phone switches that provide phone lines, Centrex, T-1’s, and PRI’s. They also make Norstar and Meridian phone systems for business offices.

History 1888 � Common battery system developed by Hammond V. Hayes, allows one central battery to power all telephones on an exchange, rather than relying on each units own battery.

Identifying your phone is the first thing you need to when you want to expand your system or replace a bad phone.

Look at the bottom of the telephone for a model number such as M7324, M7310, M7208, M7100, T7316, T7316e or T7100. Any of these identify it as part of a Norstar phone system.

Meridian, Option One and SL-1 PBX’s have phones such as M2008, M2616D, M3901, M3902, M3903, M3904 and M3905. Nortel and Aastra also have Meridian phones. Some of these are M5316, M5208, M5008, M5312, M5216, M5212, M5209, M5112, M5009, M9417CW, M9316CW, M9110, M9116, M9120, M8004, M8009, and M8314.

History 1936 � Research into electronic telephone exchanges began and was eventually perfected in the 1960’s with the electronic switching system (SES).

If you don’t find model number, look for the part #. It will almost always begin with NT for Nortel or Northern Telecom or an A if it’s Aastra. This is followed by several more alphanumeric characters.

History 1874 � Principal of the telephone was uncovered.

Remember, Meridian labelled phones may be on a Norstar system, a Meridian PBX or as part of your Centrex.

I hope this helps you identify your Meridian phone.

Bob Mrozinski

Owner of Applied Voice and Data, a broker of refurbished and new business phone system equipment from many manufacturers. Bob’s eighteen years in the phone industry are mostly on the sales side. By visiting with customers in person and on the phone for so long, he has acquired a knack for honing in on what a customer really needs to make real world applications work.

History 1918 � It was estimated that approximately ten million Bell system telephones were in service throughout the U.S.

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