1 / 15

Network Architecture

Carrier Use of SIP Aparna Vemuri Voice Engineering Architect Level 3 Communications Eric Zimmerer Director of Product Management ipVerse Inc. Network Architecture. SS7 Network. Softswitch. SS7 Network. Softswitch. SIP BCP-T. MGCP. Circuit Switch. Circuit Switch. IP/ATM Network.

hewlettc
Download Presentation

Network Architecture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Carrier Use of SIPAparna Vemuri Voice Engineering ArchitectLevel 3 CommunicationsEric Zimmerer Director of Product ManagementipVerse Inc. Vemuri, Zimmerer,

  2. Network Architecture SS7 Network Softswitch SS7 Network Softswitch SIP BCP-T MGCP Circuit Switch Circuit Switch IP/ATM Network Home/SOHO Enterprise Trunking Gateway Trunking Gateway RTP Vemuri, Zimmerer,

  3. Network Architecture • SIP with additions = Softswitch to Softswitch • Open Standards (SIP BCP-T) • Isolate legacy signaling and Maintain backward compatibility • Enable scalable deployment of Softswitch network Vemuri, Zimmerer,

  4. SIP BCP-T • SIP: Session Initiation Protocol RFC 2543 • INFO Method • ISUP MIME Type • ISUP – SIP Mapping • NAP Architecture Vemuri, Zimmerer,

  5. SIP Session Initiation Protocol • IETF Standards track: RFC 2543 • Simple: Set up and tear down sessions • Wide acceptance • Stack commercially available Vemuri, Zimmerer,

  6. INFO method • Session initiation and teardown is not enough • Mid-Call events • More complex services enabled Vemuri, Zimmerer,

  7. ISUP MIME Type • Standard method of encapsulating legacy signaling • Simplifies Inter-working: • Local variant • Interconnect variant (LCD) • Specific target: do one thing well Vemuri, Zimmerer,

  8. Why not use ISUP? • Which ISUP? • Build Tomorrow’s network with Yesterday’s protocol? • SIP BCP-T isolates legacy signaling problems • New services develop faster with IP protocols Vemuri, Zimmerer,

  9. ISUP SIP mapping • Use SIP as a basic function or tool • Build applications that use SIP for call setup • Remember: SIP is not ISUP Vemuri, Zimmerer,

  10. NAP architecture • Interconnect Packet Networks • Circuit to packet origination • Packet to packet NAP • Packet to circuit termination • Security! Vemuri, Zimmerer,

  11. Network Access Point ipVerse Control Switch SS7 Network SS7 Network Softswitch SIP BCP-T MGCP NAP Circuit Switch Circuit Switch IP/ATM Network IP/ATM Network Home/SOHO Enterprise Trunking Gateway Trunking Gateway RTP Vemuri, Zimmerer,

  12. MGC to SIP end user device • Tremendous power in distributing intelligence • Software development at Network Edge • Homebrew PBX • Incorporation of Apps in the Network • Security! Vemuri, Zimmerer,

  13. Intelligence at the Edge SS7 Network ipVerse Control Switch SS7 Network Softswitch SIP BCP-T Circuit Switch Circuit Switch IP/ATM Network Home/SOHO Enterprise Trunking Gateway Trunking Gateway Vemuri, Zimmerer,

  14. Summary • SIP BCP-T: Open standard for Softswitch to Softswitch Communication • Isolate Legacy Signaling and Maintain Backward Compatibility • Build Scalable Softswitch Networks Vemuri, Zimmerer,

  15. Proven Interoperability SS7 Network ipVerse Control Switch SS7 Network Lucent Softswitch SIP BCP-T MGCP Circuit Switch Circuit Switch IP/ATM Network Home/SOHO Enterprise Trunking Gateway Trunking Gateway RTP Vemuri, Zimmerer,

More Related