• Cisco L-SL-29-UC-K9 | Unified Communications (UC) License for 2900 Series | E-Delivery
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Cisco L-SL-29-UC-K9 | Unified Communications (UC) License for 2900 Series | E-Delivery

Cisco L-SL-29-UC-K9 | Unified Communications (UC) License for 2900 Series | E-Delivery

Cisco L-SL-29-UC-K9

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About This Product

About This Product

Buy Cisco L-SL-29-UC-K9 | ISR 2900 Series Unified Communications Technology Package License | E-Delivery

The L-SL-29-UC-K9 is a Cisco ISR 2900 Series Unified Communications Technology Package License — the complete voice and collaboration feature set for Cisco 2900 Series Integrated Services Routers. This Cisco ISR 2900 UC license unlocks TDM/PSTN gateway capabilities, voice conferencing, codec transcoding, FAX services (T.37/T.38), and Call Admission Control (CAC), making it the essential upgrade for branch-office voice deployments that require a complete IP-PBX and PSTN integration platform in a single router.

Also referenced as SL-29-UC-K9 or L-SL-29-UC-K9=, this Cisco 2900 Series UC license is a perpetual, Right-to-Use (RTU) technology package that upgrades your ISR 2900 to a full-featured voice gateway. The license includes feature add-ons for Cisco Unified Communications Manager Express (CME), Survivable Remote Site Telephony (SRST), Cisco Unified Border Element (CUBE), Gatekeeper, and VXML/IVR for interactive voice response applications. Whether you are building a standalone branch PBX or connecting to a centralized Cisco Unified Communications Manager, the ISR 2900 UC license e-delivery provides every voice and collaboration capability your ISR platform can deliver.

✅ Key Features

  • • TDM/PSTN Gateway — connect legacy PSTN trunks (FXO/FXS/T1/E1/PRI/BRI) to your VoIP network with full protocol interworking
  • • Cisco CME and SRST — built-in IP-PBX (CME) for local call control and Survivable Remote Site Telephony (SRST) for WAN outage resilience
  • • Cisco Unified Border Element (CUBE) — session border controller for SIP trunk termination, protocol normalization, and inter-domain peering
  • • Voice conferencing and codec transcoding — multi-party audio conferencing and real-time codec conversion between G.711, G.729, iLBC, and more
  • • FAX T.37/T.38 and modem passthrough — reliable fax over IP (FoIP) with T.38 real-time relay and T.37 store-and-forward fax
  • • CAC and QoS for voice — Call Admission Control and advanced QoS policies ensure toll-quality voice even under congested WAN conditions
  • • Perpetual RTU license — one-time purchase, honor-based activation via CLI, no recurring subscription fees
  • • Ideal for branch office voice, SMB IP-PBX, and PSTN migration deployments consolidating voice and data on a single router

Compatible Platform

The L-SL-29-UC-K9 is compatible with all Cisco ISR 2900 Series routers, including Cisco 2901, Cisco 2911, Cisco 2921, and Cisco 2951. Requires a Cisco Universal IOS image (universalk9-mz) version 15.0 or later with the UC technology package activated. DSP modules (PVDM3) are required for voice gateway and conferencing functions — the UC license enables the software; DSPs provide the hardware media processing. Please verify your router model and DSP configuration before purchase.

Information Needed

To generate your license file, please send the output of show license udi from your Cisco ISR 2900 Series router to support@switchlicense.com, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.

License Delivery

This Cisco ISR 2900 Unified Communications technology package license is delivered electronically. Once your device UDI is confirmed, we will send you the license entitlement by email. No physical shipment is required — simply activate the license via CLI on your ISR 2900 router and your voice and collaboration features are immediately available.

Warranty

We provide a 100% working warranty on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via PayPal for your peace of mind.

Part Numbers: SL-29-UC-K9  |  L-SL-29-UC-K9  |  SL-29-UC-K9=  |  L-SL-29-UC-K9=

Technical Specifications

BrandCisco
ModelL-SL-29-UC-K9
License FeatureUnified Communications (UC) License for 2900 Series
License TypePermanent Traditional License
CompatibilityCisco ISR 2901 2911 2921 2951 Routers
Delivery FormatE-Delivery by E-mail with LIC formation license
Lead TimeWithin 24 hours
WarrantyOriginal from Cisco ,100% Guaranteed Functional

How You'll Receive Your Order

Place Your Order
Complete checkout securely. PayPal, Visa, Mastercard & Amex accepted.
Send Device Info
Email your device S/N or UDI so we can bind the license correctly.
We Process & Verify
Our Cisco-certified engineers prepare and verify your license file.
Receive & Deploy
License file delivered to your email. Install and activate immediately.

Important: Please send your device Serial Number (S/N) or UDI to support@switchlicense.com after placing your order. This is required to bind the license to your specific device.

Same Business DayAverage delivery after info received
Delivered by EmailLicense file sent directly to your inbox
Place Your Order
Complete checkout securely. PayPal, Visa, Mastercard & Amex accepted.
Quality Inspection
Unit is tested, cleaned and packed by our engineers. Ready in 1–2 business days.
Shipped Worldwide
Dispatched via FedEx / DHL / UPS with full tracking provided.
Delivered to You
Arrives in 3–7 business days. 90-day warranty starts from delivery date.

Shipping carriers: We ship via FedEx, DHL, and UPS depending on your region. A tracking number will be emailed to you once your order is dispatched. Questions? Contact us at support@switchlicense.com

1–2 Days ProcessingInspection & packing before dispatch
3–7 Business DaysWorldwide via FedEx / DHL / UPS

Warranty & Quality Guarantee

Lifetime Warranty — No Expiry, No Exceptions

Every software license we sell is 100% genuine Cisco original, sourced from authorized channels. Your license is permanently activated and fully transferable. If it ever stops working due to a product defect, we replace it for free — for life. No questions asked.

100% Authentic Cisco

Never cloned or modified. Every license comes with proof of authenticity and original activation records.

Fully Activated & Ready

Pre-verified and activated before dispatch. Deploy immediately with zero setup friction.

Full Documentation

License keys, activation codes, and all relevant documentation included with every order.

90-Day Comprehensive Warranty

All pre-owned Cisco hardware is professionally inspected, cleaned, and stress-tested by our Cisco-certified engineers. We guarantee full functionality for 90 days from delivery. If the unit fails within this period, we will repair or replace it at no cost to you.

Professionally Refurbished

Fully disassembled, cleaned, and tested to meet original Cisco factory specifications.

DOA Replacement

Dead on arrival? We ship a replacement unit immediately with priority shipping — no delays.

Safe Packaging

Anti-static wrap, custom foam inserts, and secure outer boxing prevent transit damage.

All products are individually inspected and verified by our Cisco-certified engineers before dispatch. Questions? Our team responds within 24 hours via WhatsApp or email.

Information Required from Buyer
Action Required After Purchase — Please Read Before Ordering

Cisco licenses are device-specific — each license must be bound to a unique device identifier before it can be activated. To process your order, we require the following information from your device after purchase.

1
Find Your UDI or S/N Run show license udi or show version on your device CLI to locate the Unique Device Identifier.
2
Complete Your Purchase Place your order as normal. No device info is needed at checkout — you'll send it to us after payment.
3
Email Us Your Device Info Send your UDI or Serial Number (S/N) to us via email or WhatsApp. We'll generate your license file right away.

Send your device info to support@switchlicense.com or via WhatsApp — we'll deliver your license within 24 hours on business days.

License Activation Steps

1
Find Your UDI
Run 'show license udi' on your router CLI to get the Unique Device Identifier. Send it to support@switchlicense.com after purchase.
2
Upload License File
Copy the .lic file we send you to router flash via TFTP or USB: 'copy tftp: flash:' or 'copy usbflash0: flash:'
3
Install License
In privileged EXEC mode, run: 'license install flash:your-license-file.lic' to activate the feature.
4
Verify & Reload
Run 'show license' to confirm activation status, then 'reload' the router to fully apply the license.

Frequently Asked Questions

1 Is this license genuine and legally transferable?
This is a 100% genuine Cisco license, originally issued to an enterprise organization that has since upgraded or replaced their infrastructure. The license comes from decommissioned equipment and has never been activated — making it completely clean and ready to bind to your device. It is fully legitimate and legally transferable under Cisco's licensing policy.
2 How will I receive the license after payment?
After completing your purchase, simply email your device's UDI (Unique Device Identifier) or Serial Number to support@switchlicense.com. Once we receive your device information, your license file will be generated, verified by our Cisco-certified engineers, and delivered to your inbox within 24 hours on business days. You'll receive a .lic file along with installation instructions.
3 Can the license be transferred to a different device in the future?
Yes, the license can be transferred to another device if needed. The transfer process is managed through Cisco's license LRP. If you need assistance with the transfer process, our team is happy to guide you through every step.

Need Bulk Pricing or Technical Support?

Our Cisco-certified engineers are ready to help — support@switchlicense.com

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