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IP phone Support


Although Cisco Unified Communications Manager Express is typically suitable for fewer than 200 users, a maximum of 250 IP phones can be supported across a choice of platforms. Table 1 lists the maximum numbers of phones supported on each platform with Cisco Unified Communications Manager Express 4.3.



Maximum Number of Phones

Cisco Unified Communications 500 Series for Small Business as part of the Cisco Smart Business Communications System

CIsco 1861 Integrated Services Router 8
Cisco 2801 Integrated Services Router 24
Cisco 2811 Integrated Services Router 35
Cisco 2821 Integrated Services Router 50
Cisco 2851 Integrated Services Router 100
Cisco 3725 Multiservice Access Router 144
Cisco 3825 Integrated Services Router 175
Cisco 3845 Integrated Services Router 250


Cisco Unified Communications Manager Express support the Cisco Unified IP Phone models described below.






Cisco Unified IP Phone 7975G

Cisco Unified IP Phone 7965G Cisco Unified IP Phone 7945G Cisco Unified IP Phone 7911G
Cisco Unified IP Phone 7970G Cisco Unified IP Phone 7960G Cisco Unified IP Phone 7941G  
    Cisco Unified IP Phone 7940G  




Conference Stations

Video Telephony

Cisco Unified IP Phone 7931G

Cisco Unified Wireless IP Phone 7920 Cisco Unified IP Conference Station 7936 Cisco Unified Video Advantage
Cisco Unifed IP hone Expansion Module 7914 (max 34 buttons) Cisco Unified Wireless IP Phone 7921G Cisco Unified IP Conference Station 7937 Cisco Unified IP Phone 7985G personal desktop videophone
  Cisco IP Communicator softphone for Windows Cisco Unified IP Phone 7940G  


The Cisco Unified IP phone range support the following enhancements:


  • Display-based features with easy-to-use soft keys
  • Customer choice of using Skinny Client Control Protocol (SCCP) or SIP for commonly
  • deployed IP phones
  • Language localization and feature customization along with support for XML-based
  • applications
  • Support for 802.3af or Cisco prestandard Power over Ethernet from a Cisco Catalyst® switch, or Cisco EtherSwitch® network module or high-speed WAN interface card available on the Cisco 1800, 2800, 3700, and 3800 Series Integrated Services Routers and Cisco
  • Unified Communications 500 Series for Small Business.



To find out more about the Cisco IP phone range and how North Sydney IT can deploy and support them, click the button below.

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