YD/T 1142-2005 English PDFYD/T 1142: Historical versions
Basic dataStandard ID: YD/T 1142-2005 (YD/T1142-2005)Description (Translated English): Technical Requirements and Testing method for Ip Telephony Gatekeeper Sector / Industry: Telecommunication Industry Standard (Recommended) Classification of Chinese Standard: M40 Word Count Estimation: 246,295 Date of Issue: 2005-12-26 Date of Implementation: 2006-03-01 Older Standard (superseded by this standard): YD/T 1142-2001 Regulation (derived from): Chinese industry standard filing Notice 2007 No. 4 (total of 88) Summary: This standard specifies the IP telephony gatekeeper device features, protocol requirements, business processes, interoperability requirements, numbering requirements, performance requirements, reliability, and availability requirements, power requirements and the corresponding test methods. This standard applies to IP telephony gatekeeper devices. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YD/T 1142-2005_English be delivered?Answer: Upon your order, we will start to translate YD/T 1142-2005_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of YD/T 1142-2005_English with my colleagues?Answer: Yes. The purchased PDF of YD/T 1142-2005_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version YD/T 1142-2005?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YD/T 1142-2005 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |