Telephone dialer automatic calling unit Telecommunication -TD103 Smart artful design. Line power, no need extra power supply. Great capacity:TD103 can store up to 8 groups of 62-digit calling card numbers. Compatible:Both prepaid calling card and postpaid call service are available. Easy Programming:Dialers can be programmed manually using the keypad of telephone set. Auto Reroute: Local/long distance/IDD calls with certain prefix numbers can be rerouted to corresponding calling cards automatically. Ending Code attachment:The auto dialer can add end code # automatically after the destination number. IVR and DTMF Tone Detection mode:IVR and DTMF tone can be detected in each step. It can assure the speed and stability of the connection. Adjustable Dialing Speed:Users can adjust the dialing time and interval time of each digit to get the fast available speed. High Point: Ring and Dialing Tone Detect Function:This function can avoid problems like sending out false number and disconnection when answering call. Temporary Bypass/ Bypass switch (optional)It would bypass all the gateways set in the auto dialer and use traditional telecommunication service temporarily when add a # before a destination number. Large Activation/Bypass/Intercept/Block/Delete code:It is useful for different requirements. PBX interface:Dialers can connect line from phone terminals of the PBX. System password:Dialer can be set 4-digit system password for data lock. Remote Programming:Dialers can be programmed remotely through PSTN line.