SIP phones supported by 3CX Phone System http://www.3cx.com IP PBX Software for Windows en-us Copyright 2006 2006 All rights reserved. 3CX Software Ltd. info@3cx.com info@3cx.com GrandStream GXP-1450, 2110, 2120 and GXP 2100 (Provisioned) http://www.3cx.com/sip-phones/Grandstream-gxp1450.html 12 April 2011 3CXPhone for iPhone http://www.3cx.com/sip-phones/voip-iphone.html 22 November 2010 CISCO SPA 501G, 502G, 504G, 508G, 509G, 525G (Provisioned) http://www.3cx.com/sip-phones/Cisco-SPA.html 23 November 2009 Linksys SPA-9XX (Using manual-provisioning) http://www.3cx.com/sip-phones/linksys-spa-9xx-provision.html 18 May 2007 3CXPhone for Windows http://www.3cx.com/sip-phones/3cx-voip-phone.html 18 May 2007 How to auto-provision IP phones with DHCP 'option 66' http://www.3cx.com/sip-phones/DHCP-option-66.html 18 May 2007 3CXPhone for Android (Provisioned) http://www.3cx.com/sip-phones/3cxphone-android.html 18 May 2007 CISCO SPA 501G, 502G, 504G, 508G, 509G, 525G (Manual configuration) http://www.3cx.com/sip-phones/cisco-SPA50XG.html 05 February 2007