... phone 2,Support 2 SIP Aaccount 3, Support Transfer calls function/Three-way conference/Call waiting fun Important: It can store two ... you call to A, and need to talk with Party three, you can press 1# key to ... and store 64 groups of outgoing calls;4,Phone Book with 140 groups memory5,Hand-free dialing functions, ... Speed dial function;11,Display date, time, and with Alarm ring function; 12,Hold on music;13 ...