# PIEE #FA4690-27-R-SIP1

Market Research for SIP Hardware Modernization and Voice Transition at Ellsworth AFB

**Buyer:** FA4690  28 CONS PKC
**Posted:** October 29, 2026
**Respond By:** November 12, 2026
**Identifier:** FA4690-27-R-SIP1
**NAICS:** 517111, 517810, 517919, 334290

The Air Force is seeking market information for voice communications modernization at Ellsworth Air Force Base.
- Government buyer: U.S. Air Force, FA4690 28 CONS PKC (28th Contracting Squadron), supporting Ellsworth AFB.
- Scope: Local SIP hardware modernization, a remote ESIP upgrade, and transition from legacy voice systems.
- Products and quantities: No specific products, models, part numbers, or quantities are provided in the available notice.
- OEMs and vendors: None are named.
- Requirements: The notice references attachments for additional details, but no attachments or detailed technical requirements were provided here.

### Description

See Attachments

[View original listing](https://piee.eb.mil/sol/xhtml/unauth/search/oppMgmtLink.xhtml?noticeId=FA4690-27-R-SIP1&noticeType=SourcesSought)