This datasheet provides a technical overview of the Cisco 2900 Series Integrated Services Routers (ISR G2) and their specialized bundles. While these models have reached their official End-of-Service-Life (EOSL) from Cisco, they remain widely used in Pakistan for robust, cost-effective networking solutions.
The series consists of four main platforms (2901, 2911, 2921, and 2951), scaling in performance, slot density, and power.
| Feature | Cisco 2901 | Cisco 2911 | Cisco 2921 | Cisco 2951 |
| Rack Height | 1RU | 2RU | 2RU | 2RU |
| Ethernet Ports | 2 GE (RJ-45) | 3 GE (RJ-45) | 3 GE (RJ-45/SFP) | 3 GE (RJ-45/SFP) |
| EHWIC Slots | 4 | 4 | 4 | 4 |
| Service Modules | 0 | 1 (Internal) | 1 (SM) + 1 (ISM) | 2 (SM) + 1 (ISM) |
| DSP (PVDM) Slots | 2 | 2 | 3 | 3 |
| Default Memory | 512 MB | 512 MB | 512 MB | 512 MB |
| Max Memory | 2 GB | 2 GB | 2 GB | 2 GB |
The suffixes in the part numbers indicate the specific software licenses and hardware modules pre-installed for various enterprise roles:
-SEC / -HSEC+: Includes the Security License (Firewall, IPS, VPN). HSEC (High Security) supports high-performance encrypted throughput exceeding 225 Mbps.
-V / -VSEC: Voice-optimized bundles. Includes PVDM3 (Digital Signal Processor) modules for voice translation and communication.
-WAAS / -WAASX: Wide Area Application Services. These models include SRE (Service Ready Engine) modules or software licenses to optimize application performance over slow WAN links.
-CME-SRST: Unified Communications bundles featuring Call Manager Express and Survivable Remote Site Telephony for branch office VoIP.
-CUBE: Cisco Unified Border Element, used for interconnecting VoIP networks (SIP trunking).
-DC: Specifies a Direct Current power supply (typically 24V-60V) instead of standard AC.
SKYRS provides comprehensive lifecycle support for the Cisco 2900 series across Pakistan, ensuring these legacy units operate with modern reliability.
Site Survey: Analysis of rack space, power requirements (AC vs. DC), and environmental cooling.
Hardware Integration: Installation of EHWIC cards (Serial, E1/T1, 4G LTE) and PVDM modules for voice.
Logistics: Secure delivery and physical mounting in data centers or remote branch offices.
Initial Setup: Implementation of IP Base, Data, Security, and Unified Communications licenses.
Routing Protocols: Configuration of OSPF, BGP, EIGRP, and Static routing tailored for Pakistani ISP backbones.
Security Hardening: Deployment of Zone-Based Firewalls (ZBFW), DMVPN for secure site-to-site connectivity, and SSH/AAA for management security.
Voice/VoIP: Setting up SIP Trunks, Dial-Peers, and Voice Port configurations for local telecom integration.
Firmware Updates: Ensuring the latest stable IOS (typically 15.x) is installed to mitigate vulnerabilities.
Local RMA Support: In Pakistan, SKYRS offers hardware replacement and troubleshooting services for all 2900 variants, including the specialized SRE and WAAS modules.
Maximize your communication efficiency with high-performance networking solutions. Finding the best Cisco 2911-2921-2951 equipment for call center call centre in Pakistan requires reliable hardware and expert support. Skyrs is the premier cisco equipment series distributor Pakistan, offering unmatched inventory for software houses. Our range includes specialized variants for Zoom and RingCentral to ensure crystal-clear voice connectivity.
Modern infrastructure projects often require a seamless cisco Migration to handle increasing data loads. The cisco2951-hsec+/k9 provides superior density for high-traffic environments compared to entry-level models. For smaller branches, the Cisco 1921 throughput limit offers a stable baseline for secure data transmission. Technical teams often consult the Cisco 1941 configuration guide to optimize their modular interface setups.
Comparing 1941 vs 1921 vs 2901 helps administrators balance physical space and processing power requirements. The EHWIC-4ESG datasheet highlights the benefits of adding gigabit switching directly into your integrated services router. If your applications demand more speed, consider a Cisco 1900 series memory upgrade for better performance. Secure your hardware in any data center using the official Cisco 1941 rack mount kit.
Maintain system integrity by performing a Cisco 1900 ROMMON update to support the latest software features. You can secure your network by initiating a Cisco 1921 security license activation for advanced firewalling. Always verify your firmware with an official c1900-universalk9-mz.SPA download from a trusted manufacturer source.
As the Cisco 1900 series EOSL date 2025 approaches, companies are planning transitions to the 2900 series. Despite this, the Cisco 1900 series used price 2026 remains attractive for cost-conscious startups in emerging markets. Skyrs provides specialized support for these transitions across all router router all variants in the inventory.
We offer the most competitive cisco router price in Pakistan for enterprise-grade hardware solutions. Skyrs ensures stock availability for router price in Karachi and provides rapid shipping for router price in Peshawar. Businesses can find the best router price in Faisalabad through our centralized distribution network.
We support regional growth by offering the best router price in kpk and router price in quetta. For large-scale deployments, contact us for a router bulk quote to save on your infrastructure costs. You can easily Buy cisco equipment Lahore/Islamabad through our professional sales portals at Skyrs.com.pk.
| Product Model | Primary Purpose | Technical Functionality |
| cisco2911-vsec-cube/k9 | Unified Comms | Integrated Session Border Controller for SIP trunking. |
| c2951-waas-sec/k9 | WAN Optimization | Optimizes application delivery and secures branch traffic. |
| c2921-cme-srst/k9 | Voice Resiliency | Provides local call control during WAN outages. |
| cisco2911-dc/k9 | DC Power Environments | Specialized for telecom racks using DC power sources. |
Which Cisco router is best for a 50-seat call center?
The cisco2921-vsec/k9 offers the ideal balance of voice licensing and throughput for medium-sized operations.
Where can I find a Cisco equipment configuration guide?
Official guides are available on the Cisco Support Website for all integrated services routers.
How do I perform a Cisco VLAN configuration for voice?
Use the command line to create a voice VLAN and assign it to your RJ9 compatible ports.
What is the Cisco KX-HDV430 PoE power budget?
The power budget depends on the switchport, but these routers support standard PoE via EHWIC modules.
How to reset Cisco equipment router to factory defaults?
Press the physical reset button or use the “write erase” command via the console port.
