{"id":31248,"date":"2026-09-08T03:50:10","date_gmt":"2026-09-08T03:50:10","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/"},"modified":"2026-09-08T03:50:25","modified_gmt":"2026-09-08T03:50:25","slug":"cp-8811-k9-cisco-unified-8800-series-voip-phone","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/","title":{"rendered":"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone"},"content":{"rendered":"<p>CP-8811-K9 Technical Specifications<\/p>\n<p>Cisco Unified 8800 Series 2 Port Ethernet 10Base-T\/100Base-TX\/1000Base-T 5 lines Power over Ethernet (PoE) Caller ID, Speakerphone, Voice over Internet Protocol (VoIP) Phone<\/p>\n<p>Manufacturer: Cisco<\/p>\n<p>Part Number or SKU# CP-8811-K9<\/p>\n<p>Product Series: 8800<\/p>\n<p>Product Type: IP Phone<\/p>\n<p>Technical Information for 8800 Series IP Phone<\/p>\n<p>IP Phone Technology VoIP<\/p>\n<p>Voice Codecs: G.711a, G.711u, G.722, G.729a, iLBC, iSAC<\/p>\n<p>Quality of Service: IEEE 802.1p, IEEE 802.1Q (VLAN)<\/p>\n<p>Network Ports Qty: 2 x Ethernet 10Base-T\/100Base-TX\/1000Base-T<\/p>\n<p>Lines Supported: 5 lines<\/p>\n<p>Security: IEEE 802.1X, TLS<\/p>\n<p>Network Features: Class 2 PoE<\/p>\n<p>VoIP: Yes<\/p>\n<p>Power Over Ethernet (PoE) Support: Yes<\/p>\n<p>Interfaces\/Ports of Model Wall Mountable IP Phone<\/p>\n<p>Network (RJ-45): Yes<\/p>\n<p>Number of Network (RJ-45) Ports: 2<\/p>\n<p>Headset Port: Yes<\/p>\n<p>PoE (RJ-45) Port: Yes<\/p>\n<p>DisplayType: LCD<\/p>\n<p>Display Location: Base<\/p>\n<p>Display Resolution: 800 x 480 pixels<\/p>\n<p>Diagonal Size: 5 in<\/p>\n<p>Diagonal Size (metric): 12.7 cm<\/p>\n<p>Backlit: Yes<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CP-8811-K9 Overview<\/p>\n<p>The CP-8811-K9 Unified 8800 Series VoIP phone is a powerful communication device that combines advanced features to enhance voice communication over the Internet. With its robust design and innovative capabilities, this phone is suitable for various business environments. In this detailed review, we will delve into the key specifications, functionalities, and benefits of the CP-8811-K9, focusing on its 2 Port Ethernet connectivity, Power over Ethernet (PoE) support, Caller ID feature, and Voice over Internet Protocol (VoIP) capabilities.<\/p>\n","protected":false},"featured_media":31249,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[5684,527],"product_tag":[5685,2911,2978],"class_list":["post-31248","product","type-product","status-publish","has-post-thumbnail","product_brand-cisco","product_cat-cisco-phones","product_cat-phones","product_tag-ip-phone","product_tag-poe","product_tag-wall-mountable","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CP-8811-K9 Cisco Unified 8800 Series VOIP Phone - Geek Tech Sol<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"CP-8811-K9 Overview The CP-8811-K9 Unified 8800 Series VoIP phone is a powerful communication device that combines advanced features to enhance voice communication over the Internet. With its robust design and innovative capabilities, this phone is suitable for various business environments. In this detailed review, we will delve into the key specifications, functionalities, and benefits of the CP-8811-K9, focusing on its 2 Port Ethernet connectivity, Power over Ethernet (PoE) support, Caller ID feature, and Voice over Internet Protocol (VoIP) capabilities.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/\" \/>\n<meta property=\"og:site_name\" content=\"Geek Tech Sol\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-08T03:50:25+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Cisco-CP-8811-K9.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/\",\"url\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/\",\"name\":\"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone - Geek Tech Sol\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Cisco-CP-8811-K9.jpg\",\"datePublished\":\"2026-09-08T03:50:10+00:00\",\"dateModified\":\"2026-09-08T03:50:25+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/#primaryimage\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Cisco-CP-8811-K9.jpg\",\"contentUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Cisco-CP-8811-K9.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cp-8811-k9-cisco-unified-8800-series-voip-phone\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/geektechsol.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\",\"url\":\"https:\\\/\\\/geektechsol.com\\\/\",\"name\":\"Geek Tech Sol\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/geektechsol.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone - Geek Tech Sol","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/","og_locale":"en_US","og_type":"article","og_title":"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone - Geek Tech Sol","og_description":"CP-8811-K9 Overview The CP-8811-K9 Unified 8800 Series VoIP phone is a powerful communication device that combines advanced features to enhance voice communication over the Internet. With its robust design and innovative capabilities, this phone is suitable for various business environments. In this detailed review, we will delve into the key specifications, functionalities, and benefits of the CP-8811-K9, focusing on its 2 Port Ethernet connectivity, Power over Ethernet (PoE) support, Caller ID feature, and Voice over Internet Protocol (VoIP) capabilities.","og_url":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/","og_site_name":"Geek Tech Sol","article_modified_time":"2026-09-08T03:50:25+00:00","og_image":[{"width":800,"height":800,"url":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Cisco-CP-8811-K9.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/","url":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/","name":"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone - Geek Tech Sol","isPartOf":{"@id":"https:\/\/geektechsol.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/#primaryimage"},"image":{"@id":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/#primaryimage"},"thumbnailUrl":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Cisco-CP-8811-K9.jpg","datePublished":"2026-09-08T03:50:10+00:00","dateModified":"2026-09-08T03:50:25+00:00","breadcrumb":{"@id":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/#primaryimage","url":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Cisco-CP-8811-K9.jpg","contentUrl":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Cisco-CP-8811-K9.jpg","width":800,"height":800},{"@type":"BreadcrumbList","@id":"https:\/\/geektechsol.com\/index.php\/product\/cp-8811-k9-cisco-unified-8800-series-voip-phone\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/geektechsol.com\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/geektechsol.com\/index.php\/shop\/"},{"@type":"ListItem","position":3,"name":"CP-8811-K9 Cisco Unified 8800 Series VOIP Phone"}]},{"@type":"WebSite","@id":"https:\/\/geektechsol.com\/#website","url":"https:\/\/geektechsol.com\/","name":"Geek Tech Sol","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/geektechsol.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product\/31248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/comments?post=31248"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/media\/31249"}],"wp:attachment":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/media?parent=31248"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=31248"},{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=31248"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=31248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}