YD/T 1522.4-2009 English PDFUS$789.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. YD/T 1522.4-2009: Technical Requirements for Session Initiation Protocol. Part 4: SIP’s Applications about call control Based on Softswitching Network Status: Valid
Basic dataStandard ID: YD/T 1522.4-2009 (YD/T1522.4-2009)Description (Translated English): Technical Requirements for Session Initiation Protocol. Part 4: SIP��s Applications about call control Based on Softswitching Network Sector / Industry: Telecommunication Industry Standard (Recommended) Classification of Chinese Standard: M12 Classification of International Standard: 33.040.30 Word Count Estimation: 30,324 Date of Issue: 2009-06-15 Date of Implementation: 2009-09-01 Quoted Standard: YD/T 1522.1-2006; YD/T 1522.3-2006; YD/T 1522.31-2009; YD/T 1936-2009; YDN 038-1997; YDN 065-1997; YDC 045-2007; IETF RFC 3326; IETF RFC 3903; IETF RFC 4028 Regulation (derived from): Industry standard filing Notice 2009 No. 10 (No. 118 overall) Issuing agency(ies): Ministry of Industry and Information Technology Summary: This standard specifies the softswitch network support SIP message format and content, including SIP/SIP-I protocol softswitch network for basic services, supplementary services, connectivity checks and various business support technologies such as signaling processes requirements. This standard applies to our use of SIP/SIP-I protocol fixed softswitch network equipment and terminals. Does not apply to nomadic services, mobile services. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YD/T 1522.4-2009_English be delivered?Answer: Upon your order, we will start to translate YD/T 1522.4-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of YD/T 1522.4-2009_English with my colleagues?Answer: Yes. The purchased PDF of YD/T 1522.4-2009_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. |