maxcall

Making and receiving SIP calls
Video calling using H264 and H263+ codecs
XMPP instant messaging
Facebook instant messaging
Google instant messaging
SIP SIMPLE chat and presence
Contacts (phone book)
Loudspeaker
Balance information*
Destination*, rate
Time, call status logs
Calls history
Sending and receiving SMS* over SIP protocol
Multiple active calls support
Conferencing up to 4 participants
Blind and attended transfer
Hold
Echo cancellation
Message Waiting Indicator (MWI) for voicemail
DNS SRV
STUN support with STUN discovery
Built-in tunnel* for passing through VoIP blockades
Digits Interception (Dialer pops up once dialing from the phone’s “Dial pad” or choosing a number from the phone’s “Contact list”)
Fallback* to callthru (dialing through an access number) if network connection is not available, more
Optionally built-in callback* client for VoipSwitch (triggering conference with two numbers