{"product_id":"landline-call-blocker-1500-numbers-caller-id-box-ct-cid803","title":"Landline Call Blocker 1500 Numbers | CT-CID803 Caller ID Box","description":"\n\u003ch2\u003eTake Back Your Peace \u0026amp; Quiet — Block Unwanted Calls Instantly\u003c\/h2\u003e\n\u003cp\u003eTired of spam calls, robocalls, and nuisance telemarketers interrupting your day? The \u003cstrong\u003eCT-CID803 PLUS Caller ID Call Blocker\u003c\/strong\u003e is your landline's best defense. With a massive capacity of up to \u003cstrong\u003e1,500 blocked numbers\u003c\/strong\u003e, one-touch blocking, and smart area-code filtering, you can finally silence the calls you never asked for — without missing the ones that matter.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThis device \u003cstrong\u003erequires Caller ID service\u003c\/strong\u003e from your telephone network provider. All calls without a Caller ID will be automatically rejected.\u003c\/li\u003e\n  \u003cli\u003eNew and older model units may differ slightly in logo design and are shipped at random.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMassive Blacklist Capacity:\u003c\/strong\u003e Store and block up to 1,000–1,500 numbers — perfect for heavy spam targets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne-Touch Blocking:\u003c\/strong\u003e Manually add or remove any number to your blacklist with ease.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlock by Area Code:\u003c\/strong\u003e Block entire area codes or number prefixes (up to 10 groups) — great for stopping regional robocall campaigns.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlock Anonymous\/No Caller ID Calls:\u003c\/strong\u003e Automatically reject any call that hides its number.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Settings:\u003c\/strong\u003e Choose between 0-ring (silent block) or 1-ring to suit your preference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacklit LCD Display:\u003c\/strong\u003e Easy-to-read screen so you can manage your blocklist at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Sits neatly beside your phone without taking up space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCT-CID803 PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBacklit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeys\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSET, OUT, BLACKLIST, REMOVE, UP\/DOWN\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 × 8.6 × 4.4 cm \/ 3.9 × 3.2 × 1.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~87 g \/ 3.1 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × CT-CID803 PLUS Caller ID Blocker\u003c\/li\u003e\n  \u003cli\u003e1 × Network\/Phone Cable\u003c\/li\u003e\n  \u003cli\u003e1 × English User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Remove a Number from the Blacklist\u003c\/h3\u003e\n\u003cp\u003ePress the \u003cstrong\u003eBLOCK\u003c\/strong\u003e button, then use the \u003cstrong\u003eLeft\/Right arrows\u003c\/strong\u003e to browse your blacklist. Select the number you want to remove and press \u003cstrong\u003eDELETE twice quickly\u003c\/strong\u003e. You'll see \u003cem\u003eDONE\u003c\/em\u003e on the display confirming the number has been removed.\u003c\/p\u003e\n\n\u003ch3\u003eProtect Yourself from Scam Calls\u003c\/h3\u003e\n\u003cp\u003eUnwanted calls aren't just annoying — they can be dangerous. The FTC provides resources to help consumers identify and report phone scams. Learn more at the FTC's guide to unwanted calls. You can also register on the National Do Not Call Registry for additional protection.\u003c\/p\u003e\n\n\u003ch3\u003eYou Might Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2ch-16a-tuya-wifi-smart-switch-100-240v-16a-relay-breaker-works-with-smart-life-app-alexa-google-assistant-smart-automation-module\"\u003eSmart Home Automation Switch — App \u0026amp; Voice Control\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-3l-air-humidifier-professional-large-capacity-humidifier-for-home-double-spray-port-cool-mist-maker-humidifier-with-led-light\"\u003eCool Mist Humidifier with LED Night Light\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the CT-CID803 PLUS call blocker work with any landline phone?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the CT-CID803 PLUS is compatible with most standard landline telephones. However, it \u003cstrong\u003erequires that your telephone provider has Caller ID service enabled\u003c\/strong\u003e on your line. Without Caller ID service, all incoming calls will be rejected automatically.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many numbers can I block with this call blocker?\u003c\/h4\u003e\n\u003cp\u003eA: The device supports a large blacklist of up to \u003cstrong\u003e1,000–1,500 individual numbers\u003c\/strong\u003e. You can also block entire area codes or number prefixes, with up to 10 area code groups supported.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will blocked callers know their call was blocked?\u003c\/h4\u003e\n\u003cp\u003eA: When set to \u003cstrong\u003e0-ring mode\u003c\/strong\u003e, the blocked call is silently rejected — the phone never rings and the caller may hear a busy tone or standard disconnect message. With 1-ring mode, your phone rings once before rejecting the call.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I block calls that show \"Unknown\" or \"No Caller ID\"?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The CT-CID803 PLUS has a dedicated \u003cstrong\u003eBlock No Caller ID\u003c\/strong\u003e feature. When enabled, all anonymous or withheld-number calls will be automatically rejected — a great way to stop spam callers who hide their number.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the CT-CID803 PLUS call blocker work with any landline phone?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, the CT-CID803 PLUS is compatible with most standard landline telephones. However, it requires that your telephone provider has Caller ID service enabled on your line. 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