Local Voice T1s provide local calling area access with up to 24 channels of utilization per T1 (DS1). These T1s are primarily provided by the RBOCs or LECs like Qwest, SBC, and BellSouth, but can also be provided by CLECs like PaeTec, WorldCom, and ACC Business in certain regions.

Local Voice T1s are usually provisioned as digital switched or PRI (ISDN) circuits but in some cases, can be provided as a VOIP solution as in the WorldCom Business Solution product. Digital switched T1s offer customers up to (24) usable channels where PRI T1s generally are configured as 23B+D and allow (23) usable channels with a separate D channel for transmitting data like Caller ID information.

Both of these T1s can be configured to allow traffic overflow, DID/DOD (direct inward dial/direct outward dial) numbers, and customized RTI/TGP (route index/trunk group) configurations.

Depending on the region and providers available, the Local Voice T1s can be provisioned as fully integrated circuits, carrying local voice, switched or dedicated long distance voice, and fractional Dedicated Internet Access.