Legacy Phone Systems

Avaya Partner System

The Avaya partner system once the staple of the Avaya line is still a solid system thats in use for many businesses world wide more and as Avaya being local to Dallas its in heavy use in the area. For suppport, replacement parts, service, and repair of teh Avaya Partner System ACS in the dallas area reach out to DTBS and our certified techs will glady assist.


Nortel the once powerhouse of business communications before being bought out by Avaya. While Avaya doesnt support the Nortel brand or selll replacement parts Dallas TX Business phone systems can assist with support on Nortel phone systems. Reach out today for any need of replacement phones, cards, and support on the BCM50, BCM 100, MICS, CICS, Norstar system and anythng in the Nortel familty of phone systems.

panasonic KXTDA

Panasonic has been a leader in the realm of busness phone systems and Dallas Business Phone Systems has been there servicing for over twenty five years. We have certified techs or the KX-TDA series, and supply replacment phones, cards and modules. For the number one Panasonic support team in Dallas and surrounding area feel free to reach out to discus more.

toshiba logo phone

Dallas Business Phone Systems supports Toshiba phone systems, for replacement parts, phones, in addition to moves, adds, change, and, deletes. Speak to one of our project managers about supporrt for yur Toshiba system today.

When it comes to business phone systems Samsung estalished themselves in the business telecommunications phone systems as leaders and that honor is rightly deserved. Dallas Business phone Systeems is certified and experienced in servicing and supporting the Office Serv, DCS series phone system and telephones


‚ÄčTheres no bigger name in the world of hotel phone systems than Mitel, and no other compnay better than Dallas Business Telephone Systms to assist. If you need a new system, replacement parts, or support for your motel system we are able to assist.






















































































































































































































































































































































Dallas TX Business phone systmes not nly supports business phone systems in teh Dallas area ut nationwide we are your phone system afficianados. See below for links to our nationwide partners

New York





Ohio tele


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