{"id":691372,"date":"2024-11-06T05:25:26","date_gmt":"2024-11-06T05:25:26","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/tia-470-1222013\/"},"modified":"2024-11-06T05:25:26","modified_gmt":"2024-11-06T05:25:26","slug":"tia-470-1222013","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/tia\/tia-470-1222013\/","title":{"rendered":"TIA-470.122:2013"},"content":{"rendered":"
This standard provides acoustic transmission performance
\nrequirements for speakerphone equipped analog telephones intended
\nfor connection to terminal adapters and voice gateways that provide
\nwideband speech using packet-based services such as Voice over
\nInternet Protocol (VoIP). These services are often referred to as
\nhigh definition or HD voice services. The specification range for
\nthis standard is 100 to 8000 Hz, but for practical reasons the
\nactual audio bandwidth of covered devices is typically about 150 to
\n6800 Hz.<\/p>\n
This standard is limited to single housing speakerphones
\nintended for use on a desk or table by a single user at a distance
\nof one half meter or closer.<\/p>\n
The terminal adapters and voice gateways used to provide HD
\nvoice services normally present 600 ohm impedances and are
\nconnected to the wideband telephone with very short lengths of
\ncabling. If the wideband telephone is likely to be used in
\napplications where it may also be connected to narrowband voice
\nservices, such as the public switched telephone network (PSTN),
\nthat provide 900 ohm impedances and may use significant lengths of
\nloop (cabling), then evaluation for compliance with the latest
\nversion of the ANSI\/TIA-470.120 standard for narrowband analog
\ntelephones with speakerphones is suggested.<\/p>\n","protected":false},"excerpt":{"rendered":"
Telecommunications – Telephone Terminal Equipment – Transmission Requirements for Wideband Analog Telephones with Speakerphones<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n TIA<\/b><\/a><\/td>\n 2013<\/td>\n 54<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":691383,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2646],"product_tag":[],"class_list":{"0":"post-691372","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-tia","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/691372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/691383"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=691372"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=691372"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=691372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}