YDN038.1-1999 English PDFUS$759.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. YDN038.1-1999: Specifications of Signalling System No. 7 - Isdn User Part YDN038.1: Historical versions
Basic dataStandard ID: YDN 038.1-1999 (YDN038.1-1999)Description (Translated English): Specifications of Signalling System No. 7 - Isdn User Part Sector / Industry: Telecommunication Industry Standard Classification of Chinese Standard: M11 Word Count Estimation: 19,186 Date of Issue: 8/11/1999 Date of Implementation: 1/1/2000 Adopted Standard: ITU-T Q.764-1997, NEQ Summary: This standard is a "domestic NO. 7 signaling system technical specifications of a Integrated Services Digital Network User Part (ISUP)" additions and modifications, and refer to the latest version of ITU-T recommendations have been published and implemented special echo control signaling procedures have been predetermined. This standard applies to ISDN interworking between the PSTN and ISDN. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YDN038.1-1999_English be delivered?Answer: Upon your order, we will start to translate YDN038.1-1999_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of YDN038.1-1999_English with my colleagues?Answer: Yes. The purchased PDF of YDN038.1-1999_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 YDN038.1-1999?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YDN038.1-1999 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. |