700 West Mineral Littleton, CO 80120

Free Framed DS1 Interface Revision 1/23/98

Original Disclosure Date: September 15, 1993 Revision to disclosure #134
Summary:	U S WEST offers a Free Framed DS1 interface with the B8ZS line code. The interface is available to all customers desiring this framing format.
Locations and Timing of Deployment:	Based on customer request throughout U S WEST Communication's 14 state region. The interface is available now.
Pricing:	The Free Framed DS1 interface is expected to be tariffed in FCC No. 1, Section 10, Federal Government Specialized Service or Arrangements, and both Interstate and Intrastate tariffs.
Interface Requirements:	Except for the lack of an apparent Frame Format (SF, ESF, or T1DM), a Free Framed DS1 signal shall have electrical signal characteristics at the Network Interface identical to the framed 1.544 Mbit/s signals described in U S WEST Technical Publication #77375, Issue B, by Network Channel Interface (NCI) Protocol codes DJ, DS, and DU. Complete NCI Codes for Free Framed DS1 with the B8ZS line code are listed in the following table. The AMI line code is not offered with Free Framed DS1. Line Code Interface at a Carrier Premises Interface at an End User Premises B8ZS 04DJ9.15J 04DU9.AN 04DS9.15J 04DU9.AX The NC NCI code combinations for ordering the service will be provided in U S WEST's Technical Publication #77200, Issue B. The availability performance objectives cited in Technical Publication #77375 will be applicable to Free Framed DS1. However, performance messages such as CRCs, Slips, loss of Frame and out of frame will not be visible to U S WEST and therefore will not be collected for Free Framed DS1. All required testing will be intrusive. U S WEST Technical Publications can be obtained by writing or calling Faison Office Products 3251 Revere Street, Suite 200 Aurora , Colorado 80011 1-800-777-3672 Fax Number 1-303-340-1905 Price of #77375: $43.00 Price of #77200: $20.00
Additional Information:	Any customer premises equipment vendor/manufacturer or enhanced services provider wanting to offer products and services in conjunction with this interface provided by U S WEST may request additional information by contacting: Mr. Joel Odonkor U S WEST Communications Manager New services Planning 700 W. Mineral Ave. Rm. MNH14.9 Littleton Colorado 80120 1-303-707-7135
NOTE: This announcement has been released in accordance with the FCC Rule 51.333(a), Certification of Short Term Public Notice.

This Network Disclosure is available as a PDF download (file size: 12k). If you need to print Network Disclosures, the PDF file will give you more flexibility and a higher quality printout than will a Web page, which is designed to be viewed with a Web browser. If you need the Adobe Acrobat viewer, you can download it for free from Adobe's Web site.

Questions regarding Network Disclosure information can be referred to the individual listed on the Disclosure Announcement, or contact Jamal Boudhaouia, CenturyLink's Manager of Network Disclosures at Jamal.Boudhaouia@CenturyLink.com or (303) 707-8561.