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IP Telephony (VoIP) Deployment: Grandstream, Yealink, and Asterisk SIP PBX Sizing for Kenyan Corporates

Published: Jul 20, 2026 Updated: Jul 20, 2026 Jay Digital Solutions Engineering Team
IP Telephony (VoIP) Deployment: Grandstream, Yealink, and Asterisk SIP PBX Sizing for Kenyan Corporates

Retiring Legacy Copper Analog PABX Systems

Traditional copper PABX systems require separate cabling infrastructure and carry exorbitant landline call charges. Deploying an IP-PBX routes internal office communications over existing structured Ethernet cabling and connects to telco SIP trunks at fraction of the cost.

Enterprise IP Phone Sizing Guide

  • Standard Staff Desks: 2-line to 4-line Gigabit SIP phones (Yealink SIP-T31G or Grandstream GRP2602G) with crystal-clear HD audio and PoE support.
  • Executive & Reception Desks: Color touchscreen display phones with expansion sidecar modules (Yealink EXP43) for single-touch one-key transfer monitoring.
  • Conference Rooms: 360-degree microphone array speakerphones with acoustic echo cancellation.

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