Cisco 7841 SIP Phone with Multiplatform Phone Firmware

The Cisco IP Phone 7841 featuring Multiplatform Phone Firmware provides a dependable, enterprise-grade communication solution engineered specifically for open SIP networks and third-party call control environments. Availble in new or refurbished and combining a clear 3.5-inch graphical greyscale display, high-definition wideband audio performance, four flexible line registrations, and comprehensive business telephony tools, this professional IP desk phone delivers exceptional productivity and seamless connectivity for standard office spaces.

Please Note - This model comes preloaded with Multiplatform (3PCC) firmware, specifically designed to operate with third-party open SIP call control systems incuding Asterisk, BroadSoft, and Centile rather than native Cisco call control.

Built for Open-Standards Hosted Telephony

Tailored explicitly for businesses utilising third-party voice services across open IP frameworks, this handset merges legendary Cisco build quality with the flexibility of open-standard call control. It guarantees flawless operational harmony with market-leading platforms such as Asterisk, BroadSoft, and Centile, offering organisations total freedom in selecting their preferred cloud or on-premise communications partner.

Clear 3.5-Inch Greyscale Display Interface

Designed to streamline everyday desk-based workflows, the Cisco 7841 features a practical 3.5-inch graphical greyscale display paired with a clean white backlight. This high-contrast screen provides sharp visual clarity for checking caller ID information, reviewing local call histories, and navigating directory contacts, ensuring that standard office professionals and administrative staff can manage their daily call volumes without visual clutter.

Comprehensive Call Control and Productivity Features

Engineered to streamline daily office workflows, the 7841 provides an extensive array of telephony features designed for business efficiency. Users benefit from traditional and advanced call handling capabilities including call hold, call park and unpark, selective and group call pickup, anonymous and selective call blocking, do not disturb, and intercom functionality. Furthermore, configurable supplementary services soft keys and local phonebook integration ensure users can navigate contacts and features effortlessly.

Extensive Call Handling for Daily Productivity

Designed to optimise office workflows and reduce administrative friction, the platform delivers a robust suite of telephonic utilities. Team members can easily execute call holds, blind or attended transfers, park and retrieve calls, manage group or selective pickups, and deploy anonymous call blocking when required. Furthermore, dedicated feature activation codes and local phonebook integration ensure daily contacts remain instantly accessible.

Superior Wideband Speech Definition

Auditory precision remains paramount for effective commercial communication. By incorporating wideband support across the entire acoustic path, handset, headset, and hands-free speakerphone - the device ensures conversations sound natural and fatigue-free. Comprehensive codec versatility, including G.722, iLBC, and OPUS, guarantees optimal performance across varied network bandwidths.

Enterprise-Grade Network Security and Infrastructure

Safeguarding corporate data is critical, and this hardware implements multi-layered defensive measures. Network security is strictly enforced via IEEE 802.1X supplicant authentication, Transport Layer Security (TLS) signaling protection, and Secure Real-Time Transport Protocol (SRTP) media encryption. Mass deployment is equally streamlined through automated HTTP/HTTPS provisioning servers.

Features

• Hosted PBX Readiness - Fully certified for reliable deployment across prominent third-party open SIP environments including Asterisk and BroadSoft
  
• Multi-Extension Handling - Manages up to four independent SIP registrations simultaneously on a single desktop unit
  
• Advanced Codec Support - Leverages high-grade audio codecs including OPUS and G.722 for superior voice fidelity
  
• Encrypted Data Protection - Secures administrative configuration files and live media streams against interception
  
• Automated Mass Deployment - Minimises IT setup overhead with touchless auto-provisioning via TFTP and secure HTTP servers
  
• Centralised Directory Access - Connects rapidly to remote XML or LDAP corporate address books for streamlined lookup
  
• Dedicated Navigation Keys - Features physical buttons for quick control over volume, muting, speakerphone activation, and messaging alerts
  
• Power over Ethernet Integration - Operates cleanly via standard IEEE 802.3af PoE to eliminate unnecessary desktop power wiring

Technical Specifications

Protocol and Line Support

• Call Control Protocol - Session Initiation Protocol (SIP)
• Lines Supported - Up to 4 active lines (SIP registrations)
• Supported Platforms -Asterisk (1.8+), BroadSoft (19sp1, 20sp1, 21sp1), Centile (Istra SP 9.2)

Audio and Codecs

• Audio Codecs - G.711 (A-law and μ-law), G.722, G.722.2, G.729ab, iLBC, iSAC, OPUS
• DTMF Support - Inband, out-of-band (RFC 2833), and SIP INFO
• Speakerphone - Full-duplex hands-free speakerphone

Network and Security

• Ethernet Switch - 10/100/1000 Mbps integrated switch with dual ports for PC pass-through
• Networking Protocols - IPv4, DHCP, SNTP, DNS (A and SRV records), LLDP, Cisco Discovery Protocol
• Security Features - 802.1X authentication, SRTP, TLS, HTTPS provisioning, password login, and encrypted configuration files

Standard Package Contents

• Cisco 7841 SIP Phone with Multiplatform Firmware
• Handset and Curly cord
• Network Cable
• Desktop Stand
• User Documentation

*Please note - refurbished products package contents may vary from the above