Call selector VoIP/ PSTN 2 line Intelligent Switch -TCS1801 

Call selector is a device used in the situation that there are two outgoing lines but only one telephone set. It can reroute some calls to go through one line, and the other calls to go through the other line automatically. People have a PSTN line in use, and they might want to install another VoIP line or GSM/CDMA FWT line as usually the rate of other line is much lower. It can help people choose the most economic call router and save call cost.
Call select automatically:Users can use one telephone set with two different outgoing lines, and the call would select the line according to the programming automatically.Compatible:It can be used for the select between PSTN line and VoIP line, PSTN line and GSM/CDMA FWT, GSM/CDMA FWT and VoIP line, and so on.Easy Programming:Call selector can be programmed manually using the keypad of telephone set.Call prefix programmable:Users can program which phone numbers go through one line and which numbers go through the other line.No influence on the voice quality:It does not have any influence on the voice quality.Busy line prompts available:If there is incoming call from one line when the other line is on talking, users can set the line busy tone.Basic auto dialer function:It can add some gateway number for the two lines before the phone number to save call cost.Intercept/Delete function:It can intercept/delete some digits that users dial.PBX interfaceIt is compatible with PBX, and users can set outgoing code for the two lines.System password:Call selector can be set 4-digit system password for data lock.Multi-line power adaptor and stackable design makes it can work as low cost multi-line call selector.