The Cisco SPA504G is a high-performance, 4-line business IP phone designed for small to medium-sized enterprises (SMEs) and home offices in Pakistan. Known for its exceptional durability and professional feature set, it provides a perfect balance between affordability and high-end functionality. It is widely deployed in Karachi, Lahore, and Islamabad for office workers and managers who require reliable, secure, and clear communication.
4-Line Business Phone: Supports up to 4 independent SIP registrations, allowing users to manage multiple extensions or service providers on a single device.
Dual Ethernet Ports: Features two 10/100 Mbps ports with an integrated switch, enabling you to share a single network drop with a PC—reducing cabling costs in the office.
Cisco HD Voice: High-definition wideband audio (G.722) ensures unsurpassed voice clarity and enhanced speaker quality for professional calls.
Power over Ethernet (PoE): Fully supports 802.3af PoE, eliminating the need for external power adapters when used with PoE-enabled switches.
Expandable Interface: Supports up to two Cisco SPA500S Expansion Modules, adding up to 64 additional buttons for receptionists or power users.
| Feature | Details |
| Lines | 4 Voice Lines (Independent SIP Registrations) |
| Display | 3.0″ Monochrome Backlit LCD (128 x 64 pixels) |
| Networking | 2 * 10/100Base-T RJ-45 Ethernet Ports |
| Voice Codecs | G.711a/u, G.722 (HD), G.726, G.729a |
| Headset Port | 2.5 mm Wired Jack |
| Speakerphone | Full-Duplex with Acoustic Echo Cancellation |
| Security | SIP over TLS, SRTP, HTTPS, 256-bit AES Encryption |
| Power | 802.3af PoE or Optional 5VDC Adapter (PA100) |
| Dimensions | 214mm × 212mm × 44mm |
Intuitive Interface: Backlit monochrome display and a 4-way rocking directional knob for easy menu navigation.
Dedicated Function Keys: Illuminated buttons for Audio Mute, Headset, and Speakerphone, plus a dedicated Hold button and Settings key.
Advanced Telephony: Supports Call Waiting, Call Transfer (Blind/Attended), 3-way Conferencing, Call Park/Unpark, and Intercom.
Directory & Logs: Personal directory with 100 entries and call logs (missed/received/placed) for up to 60 entries each.
Secure Management: Highly secure remote provisioning and web-based configuration (HTTPS/TFTP) for easy deployment across multiple Pakistani branch offices.
The Cisco SPA504G is the quintessential “workhorse” phone for the Pakistani business market. It offers the professional reliability Cisco is known for at a price point that fits SME budgets. For SKYRS clients, its interoperability is a major asset—it works seamlessly with Dinstar UC series PBXs, Asterisk, 3CX, and hosted VoIP services. Its backlit display is a significant upgrade over older monochrome models, ensuring easy use in various lighting conditions.
