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This 10- page white paper describes one recently solved challenge in 3G video telephony that delayed widespread deployment – call setup time. The challenge is analyzed and underlying reasons defined. Standardized solutions, such as WNSRP and MONA, which overcame the challenge, are presented and future issues of widespread deployment discussed. Subjects covered in the whitepaper include:
  • Introduction
  • The Reasons Behind Long Call Setup Time
    • Reason 1: Too many H.245 messages on setup
    • Reason 2: Each payload requires acknowledgement before the next one is sent (xSRP layer)
    • Reason 3: There are distinct stages in the H.245 call setup process which cannot occur in parallel
  • Standardized Solutions
    • WNSRP (H.324 Annex A)
    • MONA (H.324 Annex K)
  • Bottom Line Results
  • Conclusion
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