Lifecycle record

SL-44-UC-K9 EOL & EOSL Dates

Cisco Unified Communication PAK for Cisco ISR 4400 Series

Lifecycle status

EoS - Sales Ended

SL-44-UC-K9 is no longer sold by Cisco; end of sale was 2024-01-26. Support continues until 2029-01-31.

Last checked: 2026-06-16

EOL & EOSL Dates and Details

End-of-Life Announcement (EOL) 2023-10-26
End of Sale (EOS) 2024-01-26
End of Service Life (EOSL) 2029-01-31
Manufacturer Cisco
Category Routers
Product Series Cisco ISR 4400
Part Number SL-44-UC-K9
Model Number SL-44-UC-K9=
Release Date -
Replacement Part Number N/A

Lifecycle Timeline

Recorded lifecycle milestones in date order.

  • End-of-Life Announcement (EOL)
    2023-10-26


  • End of Sale (EOS)
    2024-01-26


  • Last Ship Date
    2024-04-25


  • End of SW Maintenance
    2025-08-31


  • End of Service Contract Renewal
    2028-04-22


  • End of Service Life (EOSL)
    2029-01-31

Additional Information

Support milestones and the official source recorded for this model.

Last Ship Date: HW, License 2024-04-25
End Of New Service Attachment Date: HW 2025-01-25
End Of SW Maintenance Releases Date: HW 2025-08-31
End Of Routine Failure Analysis Date: HW 2025-01-25
End Of Vulnerability/Security Support: HW 2028-11-30
End Of Service Contract Renewal Date: HW 2028-04-22
Official EOL Notice View Official EOL Documentation

More Cisco ISR 4400 EOL Dates

Part Number Product Name EOL Announcement End of Sale
C1-CISCO4431-K9 Cisco ONE ISR 4431 (4GE,3NIM,8G FLASH,4G DRAM,IPB) 2022-04-29 2022-10-28
C1-CISCO4451-K9 Cisco ONE ISR 4451 (4GE,3NIM,2SM,8G FLASH,4G DRAM, IPB) 2022-04-29 2022-10-28
FL-44-HSEC-K9 Cisco U.S. Export Restriction Compliance license for 4400 series 2023-10-26 2024-01-26
FL-44-PERF-K9 Cisco Performance on Demand License for 4400 Series 2023-10-26 2024-01-26
ISR4431-AX-K9 Cisco ISR 4431 AX Bundle with APP and SEC license 2022-11-07 2023-11-07
ISR4431-AXV-K9 Cisco ISR 4431 AXV Bundle,PVDM4-64 w/APP,SEC,UC Lic 2022-11-07 2023-11-07
ISR4431-DNA Cisco ISR 4431 (4GE,3NIM,8G FLASH,4G DRAM,IPB) with DNA sub 2022-11-07 2023-11-07
ISR4431-EN-3Y-1G Cisco VIPTELA-ISR4431 3Year 1Gbps Enterprise Bundle 2022-05-06 2022-11-04