DTMF
RFC2833, SIP INFO, INBAND
Codecs
G.711A, G.711U, G.729A, G.723.1, G.722, GSM
OpenVox UC Series IP Phone System
UC300,UC500
Enterprise Series IP Phone System
IX140,IX240,MC100
OpenVox Unified Communication Platform
VS-GW1202 Series,VS-GW1600 Series,VS-GW2120 Series
OpenVox MotherBoard
VS-CCU-N2930AM,VS-CCU-500HDD
OpenVox GSM VoIP Gateways
WGW1002G,SWG-1016G,VS-GW1202/VS-GW1600/VS-GW2120GSM Series,VS-GWM400G
OpenVox WCDMA VoIP Gateways
VS-GW1202/VS-GW1600/VS-GW2120 UMTS Series,VS-GWM400W
OpenVox CDMA VoIP Gateways
SWG-1016C
Other Brand
Grandstream,Yeastar,Dinstar,Zycoo,Polycom,Fanvil,Flyingvoice