... 4 SIP accounts 1.WiFi SIP Phone support SIP,LCD 2.support 802.11b/g 3.compatible with Elastix Wireless SIP Phone Support 4 SIP accounts ... for Elastix***Introduction***Now with WSS660 Wireless SIP phone, you can make calls ... , SIP2.0, G.711a/u-law etc.***Key Features***1. Wireless SIP phone Support 802.11b/g, IEEE 802.1x, 802.11i2 ...