professional manufacture of IP phone with 4 years expereince, OEM/ODM available,lower price but high quality, smart shell 1. Special smart IP card,4 group IP for choice2. 1 service hotline, more convenient, pleasant to use the phone3. FSK/DTMF dual system, EEPROM protect the number not to lose4. 30 incoming call,10 outgoing call which can be called back, reviewed and deleted5. 5 step LCD contrast ...