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Communication Systems International Incorporated

Access Lines

Business Lines
AT&T® business lines connect your business' telephones to AT&T®'s network to ensure high-quality voice transmission with unmatched clarity and reliability.

PBX Trunks
If your business manages its own Private Branch Exchange you can rely on AT&T® PBX Trunks to connect your system to the AT&T® network. These trunks support business' voice activity including analog one-way incoming calls, outgoing calls, two-way facilities, direct inward dialing, tenant service and digital trunking.

DID Service
For companies with PBX systems, Direct Inward Dialing employees with their own phone numbers, saving clients and vendors the additional time of going through an operator or automated attendant.


Voice Services

Access Lines

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Business Long Distance/Toll Free