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Synapse^® Business Phone Systems
The complete solution for businesses now with support for up to 100 users.
Syn248^™ Business Phone Systems
The complete solution for businesses now with support for up to 24 users.
SynJ^® Cordless Business Phone Systems
The complete solution for long-range businesses now with support for up to 11 users.

Cordless Headsets
Mobile communications solutions for office & warehouse applications.
Multi-Line
The complete solution for small businesses needing multiple-line functionality.
Single Line
The complete solution for small businesses needing single-line functionality.

How to Buy

Synapse: Contact us or call 888-722-8521.
Syn248 Buy Now
SynJ Buy Now
Email us:
Send an email and a U.S.-based SMB expert will contact you within 1 business day.

By Size

1-24 Users

SynJ^® Cordless Business Phone Systems:
Extended range, cordless mobility, 4 lines and up to 11 users.
Syn248^™ Business Phone Systems:
PBX functionality, up to 8 lines and 24 users.

25-100 Users

Synapse^® Business Phone Systems:
PBX functionality, PRI, PSTN lines, SIP trunks, and up to 100 users.

By Industry

Looking for a complete communications solution made for your trade? Learn how Synapse delivers the powerful business features your niche needs.

Construction
Healthcare
IT
Manufacturing
Real Estate
Retail

By Need

Long range:
With SynJ, you can stay connected even
when you’re away from your desk
Do-it-yourself simplicity:
Syn248 comes with just two components, so
you’ll be up and running in minutes.
Full-featured scalability:
If you need powerful business features and room to grow, Synapse is a great choice.
Hands-free mobility:
With AT&T cordless headsets, you can keep on talking - even when your hands are full.

Training Center
Online self-paced training
Video Gallery
Learn more about SMB telephony systems with a full set of videos targeting the many functions and abilities of our systems.
Product Documentation
Find the documents specific to your system. Manuals , Quick Start Guides & Tech Tips.

Product Registration
Validate your purchase and activate your warranty.
Synapse^® Certified Interoperability Partners
View our list of SCI partners.
Warranty and Returns
View our warranty & return information.
Policies
View our privacy policy, shipping policy & terms of sale.

Press Releases

AT&T Introduces Business Class Cordless Headsets
AT&T Introduces Business Class Cordless Headsets
AT&T introduces the New Cordless Business Phone System
AT&T introduces the New Extendable Range Phone System
Synapse^® Enhances Communication for Small-to-Medium Businesses
New T1/PRI Gateway and Upgraded Software Allows Synapse System to Support 39 Lines and 100 extensions
View All Press Releases

Case Studies

A Communications Refresh
Synapse^® Business System
Ease of Use
Synapse^® Business System
SIP Trunking Whitepaper
Synapse^® Business System
Personal Workspace Empowered at Profitect
Synapse^® Business System
View All Case Studies

SMB Marketing Resources

Denise O'Berry - Article #1
Ten Steps to Help You Make Your Conference Calls Successful
Denise O'Berry - Article #2
Use Multiple Tactics to Improve Communication with Your Virtual Team
Denise O'Berry - Article #3
Communication With Each Other Will Help Your Business Be a Success
Denise O'Berry - Article #4
How Managers Can Enhance Communication Techniques Depending on Employees' Personalities
View All SMB Marketing Resources

SMB Home
/ Products
/ Single Line

Single-Line Telephones

Single Line

CL84100

Cordless answering system with caller ID/call waiting²

CL84100

Unsurpassed range
Handset and base speakerphones
Caller ID/call waiting²—50 name and number Caller ID history
Digital answering system

Learn More

TL92270

Connect to Cell^™¹ answering system with caller ID/call waiting²

TL92270

Connect to Cell^™¹
Downloadable phonebook directory
Unsurpassed range
Handset speakerphone

Learn More

Feature requires a subscription to cellular service on a compatible BLUETOOTH^® technology-enabled cellular phone to operate. Refer to the support tab on the desired product detail page for a complete list of BLUETHOOTH^® technology-enabled cellphones that have been tested and found to be compatible with this model.

Use of caller ID feature requires a subscription from your telephone service provider.

Feature available for compatible Android^® phones with OS version 2.3 or above. To use, you must first download the free Connect to Cell app from the Google Play^® Store app.

⁴

The actual recording time depends on individual message characteristics.

⁵

This telephone system is compatible with certain AT&T DECT 6.0 cordless headsets. Refer to the accessories page under the shop tab for a list of compatible cordless headsets.

⁶

Use of voicemail features requires a subscription from your telephone service provider.

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About Us

AT&T and the AT&T logo are trademarks of AT&T Intellectual Property licensed to Advanced American Telephones, San Antonio, TX 78219.

Synapse^®, SynJ^®, Syn248™ and "Simplicity without Sacrifice™" are trademarks of Advanced American Telephones. All other marks contained herein are the property of their respective owners.