{"product_id":"advanced-two-door-entry-phone-controller","title":"Advanced Two Door Entry Phone Controller","description":"\u003cp\u003e- Allows single line telephones or a telephone system to share a phone line with two Viking entry phones\u003cbr\u003e- Double and triple distinctive ringing, programmable entry phone caller ID or beep tones allow you to distinguish front and back door entry calls from CO calls\u003cbr\u003e- Stackable - connect up to four C-500s to control up to eight entry points\u003cbr\u003e- Built in five number dialer (if inside phone doesn't answer), detects busy or ring no answer and goes on to the next number\u003cbr\u003e- Provide entry phone activated chimes and whole house paging when use diwth an SLP-1 or SLP-4\u003cbr\u003e- Analog Station Dial Through Mode allows entry phones to connect to analog PABX station or telephone line\u003cbr\u003e- Two N.O\/N.C. 5A door strike relays with 1 or 2 digit activation commands\u003cbr\u003e- Monitor any entry phone by entering a touch tone\u003cbr\u003e- Up to 6 different keyless entry codes, and two \"one time use\" keyless entry codes, and two \"one time use\" keyless entry codes per entrance\u003cbr\u003e- Auto answer for remote programming\u003cbr\u003e- Two trigger inputs for Request to Ext (REX), immediate call forwarding or lighted doorbell switches to activate entry phone calls\u003cbr\u003e- Produces \"Call Waiting\" tones if the entry phone is activated when the house phones are on a call\u003cbr\u003e- Compatible with the following Viking entry phones: E-10A, E-20B, E-30, E-35, E-40, E-50, E-60, E-65, E-70, and E-75; K-1500-7; K-1700-3, K-1705-3; K-1900-8 \n\u003cbr\u003eUPC: VK-C-500\n\u003cbr\u003eManufacturer: Viking Electronics\n\u003cbr\u003ePartNumber: VK-C-500\u003c\/p\u003e","brand":"Viking Electronics","offers":[{"title":"Default Title","offer_id":42564939317344,"sku":"VK-C-500","price":378.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/2462\/2944\/files\/775d8ff3-adb3-4064-97c0-7613b2bdc683.jpg?v=1770471841","url":"https:\/\/supplycentralstore.com\/products\/advanced-two-door-entry-phone-controller","provider":"supplycentralstore2025","version":"1.0","type":"link"}