1 / 54

Introduction to RTG and HVP

Introduction to RTG and HVP. sinam.woo@samsung.com Date: 2011.12.16 Revision 1.2. Contents. V4.60 Characteristics RTG HVP Security Appendix NAT Configuration. V4.60 Characteristics. Increase Concurrent Calls RTG Decrease MGI Usage at Paging Service HVP Security Support TLS/ sRTP.

tress
Download Presentation

Introduction to RTG and HVP

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. Introduction to RTG and HVP sinam.woo@samsung.com Date: 2011.12.16 Revision 1.2

  2. Contents • V4.60 Characteristics • RTG • HVP • Security • Appendix • NAT Configuration

  3. V4.60 Characteristics • Increase Concurrent Calls • RTG • Decrease MGI Usage at Paging Service • HVP • Security Support • TLS/sRTP

  4. V4.60 Characteristics (cont.) Concurrent Calls View Concurrent Calls at the hold/ringback state Concurrent Calls At the conversation RTG MPS MPS MGI MGI MGI MGI Before v4.60 v4.60 Before v4.60 v4.60 Assumption: OAS installation or OS7100/7030/7070 system

  5. V4.60 Characteristics (cont.) • Assumption: • All Paging Members are IP phone. • All members are located in same network. • Number of paging member including pager is 20. 20 Number of MGI channels 2 Before v4.60 v4.60

  6. RTG(Real-time Tone Generation)Service

  7. RTG Description • RTG (Real-time Tone Generation) • Support Ringback/Hold Tone Streaming Service • Support RFC 2833 detection service • Used at Mobex. • RTG is served at • OAS Card and Embedded RTG in MP20s/MP10a/OS7030/OS7070 Note) RTG in OAS can be enabled at MP40/MP20/MP20s

  8. No-MGI Operation (incoming call at v4.53) Assumption : Call from SIP Trunk to IP Phone IP Phone OfficeServ SIP/SPNET Trunk Hook On Incoming Ringing Ringing Ringback Tone Stream MGI Hook Off Answer Conversation Voice Stream MPS

  9. No-MGI Operation(incoming call at v4.60) Assumption : Call from SIP Trunk to IP Phone IP Phone OfficeServ SIP/SPNET Trunk MGI is replaced by RTG Hook On Incoming Setup Ringing Ringback Tone Stream RTG Hook Off Answer Conversation Voice Stream MPS

  10. No-MGI Operation (outgoing call at v4.53 and v4.60) Assumption : Call from IP Phone to SIP Trunk IP Phone OfficeServ SIP/SPNET Trunk Hook Off Outgoing Setup Ringing Ringback Tone Stream MPS Answer Conversation Voice Stream MPS

  11. Relation between MPS and RTG Nmax : Number of calls available NMPS: Number of MPS calls used NRTG: Number of RTG channels used Available RTG Channel Available MPS Calls MPS Calls used RTG Channel used

  12. RFC2833 Detection Service MOBEX Executive User 1. conversation MPS 2. hold 3. Transfer tone stream RTG RTG 4. Send RFC833 packet IP Phone 4. Detect RFC833 packet 3. Hold tone stream

  13. How to configure RTG Start DM 2.1.5 MPS Service ? No Yes Set Local RTG port DM 2.2.15 System is NAT ? Set Public RTG port Set NAT machine Yes No DM 5.7.1 Check Cadence End

  14. RTG Configuration RTG Service is available when MPS service is enabled The following figures are captured at OS7400

  15. RTG Configuration (cont.) • RTG Local port is source UDP port about transmitting RTP Stream. • RTG Public port is public UDP port mapped in NAT-machine about RTG Local Port. • e.g) 192.168.41.12/45000 is mapped into 30.0.0.9/45128. • RTG Frame Count means packet interval between RTP packets. Default value is 20ms and Maximum value is 60ms.

  16. RTG Configuration (cont.) • Its information is used for analog devices and RTG. • Cadence value can be changed Column with orange color is read-only.

  17. RTG Status View DM 6.2.10 shows RTG channel information, which includes remote IP/port , codec, tone type.

  18. Trouble Shooting Start DM 6.2.10 No Sound? Info. Is correct ? Check RTG Status Yes No Yes Sound Abnormal ? Adjust RTG Frame Count (20 ~ 60ms) DM 2.2.5 Yes No Capture packet Analyze packet Check packet loss and delay End

  19. HVP (Hybrid Voice Paging)Service

  20. Introduction : Unicast Host A Host B 165.213.80.100 Payload Payload Dest: 10.254.176.100 Src : 165.213.80.100 IP Header 10.254.176.100 Packet

  21. Introduction : Multicast (Local-Scope) Host B Receiver 165.213.80.200 L2 Switch Host C Receiver Host A Sender 165.213.80.201 165.213.80.100 Payload Payload Payload Payload Dest: 239.0.0.1 Src : 165.213.80.100 Dest: 239.0.0.1 Src : 165.213.80.100 Dest: 239.0.0.1 Src : 165.213.80.100 Dest: 239.0.0.1 Src : 165.213.80.100 Host D Receiver 165.213.80.202 Multicast Address

  22. Introduction : Multicast (global scope) Note : Router must support multicasting for multicast among networks and host supports IGMP. Mcast Router Router 2. Determine Multicast Route By PIM or DVMRP Host B Host A Sender Mcast Router 10.254.176.100 165.213.80.100 Payload Payload Payload Payload Dest: 239.0.0.1 Src : 165.213.80.100 Dest: 239.0.0.1 Src : 165.213.80.100 Dest: 239.0.0.1 Src : 165.213.80.100 Dest: 239.0.0.1 Src : 165.213.80.100 1.IGMP Join (239.0.0.1) IGMP Join (239.0.0.1) Host D Receiver Host C Receiver 10.254.1.101 10.254.1.100

  23. HVP Description • Hybrid Voice Paging • Voice paging to IP interface is served by the combination of unicast and multicast. Sender Receiver Sender Receiver A D D B E E A C F F Multicast Unicast

  24. HVP Case Study Number of MGI Channels : 1 DGP Phone IP Phone IP Phone MGI IP Phone IP Phone IPT Multicast-Supported IP phone Multicast Stream IPT Unicast Stream Multicast-Unsupported IP phone

  25. HVP Case Study (cont.) Number of MGI Channels : 2 DGP Phone IPT IPT MGI #2 MGI #1 IPT IPT IPT Multicast-Supported IP phone Multicast Stream IPT Unicast Stream Multicast-Unsupported IP phone

  26. HVP Case Study(cont.) Number of MGI Channels : 2 DGP Phone Multicast Router IPT IPT MGI #1 MGI #2 IPT IPT IPT Multicast-Supported IP phone Multicast Stream IPT Unicast Stream Multicast-Unsupported IP phone

  27. HVP Case Study(cont.) Number of MGI Channels : 1 IPT DGP Phone Multicast Router IPT IPT MGI #1 IPT IPT IPT IPT Multicast-Supported IP phone Multicast Stream IPT Unicast Stream Multicast-Unsupported IP phone

  28. How to configure HVP Start IP phones support multicast? All member is co-located with system ? There are Members in multicast network ? DM 2.8.0 Yes No Yes Set Feature Code Yes No No Set Multicast Page to be Auto/Enable DM 2.7.1 Set Page member DM 4.1.3 Set Multicast Page to be Auto/Disable There are IP phones ? Yes Check router configuration No Set IP network End DM 5.2.25 Set Multicast Page to be Auto/Enable DM 2.7.1

  29. HVP Configuration

  30. HVP Configuration(cont.) Multicast Address : 224.0.0.1 ~ 239.255.255.254 Add Page Member

  31. HVP Configuration(cont.) The field indicates paging option Auto: System automatically determine whether multicast can be used or not. (If ITP is co-located with system’s network or is located into multicast network in DM 5.2.25, multicast is served. ) Enable: Multicast is manually served Disable: Unicast is manually served

  32. HVP Configuration(cont.) The field indicates the network address which multicast is available and ITPs are located. It is not related with multicast address.

  33. Trouble Shooting Start DM 2.7.1 ITP type and version support multicast ? Check Multicast Address and Paging setting ? Yes Yes DM 4.1.3 No Error Check Router and Switch? Yes Change S/W and Device Error Change configuration Change configuration End Change Disabled

  34. Example: Multicast Configuration at GWIMT Select ‘Multicast Tab’ Note: Refer to Data Datasheet for detailed information

  35. Multicast Configuration at GWIMT(cont.) Select ‘Multicast Protocol’

  36. Multicast Configuration at GWIMT(cont.) Set Options about Multicast Protocol

  37. Multicast Configuration at GWIMT(cont.) Set Ethernet Interface for multicasting

  38. Multicast Configuration at GWIMT(cont.) See the information of Multicast Member

  39. Multicast Configuration at GWIMT(cont.) See Multicast Information

  40. Multicast Configuration at GWIMT(cont.) See Multicast Route Information

  41. Security

  42. Security Description • Security • OS7200 and 7400 only support • Control-Layer • TLS ( Transport Layer Security) • RFC 5246 • SIP only support. • Bearer-Layer • sRTP (Secure Real-time Protocol) • RFC 3711

  43. Generic Security Operation Flow 1. Make TLS Session Host A Host B 2. Negotiate VoIP session including Media Session 3. Send/Receive Secure RTP

  44. How to configure Security Start Yes Set sRTP algorithm in DM 2.1.5 No TLS use ? sRTP use ? Yes No SIP station? No SPNET use sRTP? Yes Set sRTP Enable In DM 3.3.1 Yes No Set TLS option In DM 5.2.12 MGI use sRTP ? Yes Set sRTP Enable In DM 5.2.16 Set TLS option In DM 5.2.17 No ITP use sRTP ? Yes No End Set sRTP Enable in DM 2.7.1

  45. Security Configuration AES_CM_128_HMAC_SHA1_80 Encryption Algorithm Key Size : 128 bits Authentication algorithm Tag Size: 80 bits The field indicates whether sRTP will be used or not and sRTP algorithms.

  46. Security Configuration (cont.) The field indicates whether ITP use sRTP or not

  47. Security Configuration (cont.) The field indicates whether SPNET use sRTP or not

  48. Security Configuration (cont.) The field indicates whether MGI use sRTP or not

  49. Security Configuration (cont.) The fields indicate whether SIP station uses TLS or not. Refer to “Feature Guide” for option description.

  50. Security Configuration (cont.) The fields indicate whether SIP peering uses TLS or not. User Information must be set.

More Related