4.1.1.1 SIP Server Failover
Description
When communicating with a SIP server (e.g., when the V-SIPGW card is in INS status, when sending periodic
REGISTER requests), if the SIP server does not reply after sending the REGISTER/INVITE request, the
REGISTER/INVITE request is sent again using one of the following methods.
•
If a failover SIP server is registered, the REGISTER/INVITE request is sent to that server.
•
If a failover SIP server is not registered, a REGISTER/INVITE request is immediately sent to the destination
obtained from a DNS resolution of the registrar server name.
Conditions
•
The failover destination is decided based on the following order.
1.
The failover destination IP address of the SIP server/Registrar server
2.
DNS SRV record / A record round robin
•
If the above failover operation fails, communication is attempted over a public trunk rather than a SIP trunk.
Automatic Rerouting of SIP Trunk Calls to Public Trunks
When a SIP trunk call cannot be completed successfully, the PBX can automatically attempt to make the call
using a public trunk instead. This provides a backup method of making calls in cases when IP network
transmission cannot be completed successfully. For more information, refer to "4.3.2 Voice over Internet
Protocol (VoIP) Network—Automatic Rerouting of VoIP Calls to Public Trunks".
[Example]
PBX-1
PBX-2
Extn.1000
Extn.1011
(012-345-1011)
V-SIPGW
V-SIPGW
Dials
"012-345-1011".
IP Network
Telephone Company
(area code: 098)
Telephone Company
(area code: 012)
012-345-1011
Installation Manual References
4.4 Virtual Cards
8.4 SIP Trunks
PC Programming Manual References
9.10 PBX Configuration—[1-1] Configuration—Slot—Port Property—V-SIPGW—Main—
Address for Failover
9.10 PBX Configuration—[1-1] Configuration—Slot—Port Property—V-SIPGW—Register —
IP Address for Failover
9.10 PBX Configuration—[1-1] Configuration—Slot—Port Property—V-SIPGW—Option—
378
Feature Guide
4.1.1 SIP (Session Initiation Protocol) Trunk
Содержание KX-NS500
Страница 14: ...14 Feature Guide Table of Contents...
Страница 15: ...Section 1 For Your Safety Feature Guide 15...
Страница 18: ...18 Feature Guide 1 1 1 For Your Safety...
Страница 19: ...Section 2 Call Handling Features Feature Guide 19...
Страница 40: ...PT Programming Manual References 720 Doorphone Call Destination 40 Feature Guide 2 1 2 Internal Call Features...
Страница 57: ...632 Maximum Number of Agents Feature Guide 57 2 2 2 Incoming Call Distribution Group Features...
Страница 107: ...User Manual References 1 2 1 Basic Calling Feature Guide 107 2 5 4 Trunk Call Features...
Страница 174: ...Feature Guide References 2 21 2 Flexible Buttons 174 Feature Guide 2 11 6 Flash Recall Terminate...
Страница 193: ...User Manual References 1 4 2 Holding a Call Feature Guide 193 2 13 1 Call Hold...
Страница 228: ...User Manual References 1 7 1 Paging 1 7 2 Answering Denying a Paging Announcement 228 Feature Guide 2 17 1 Paging...
Страница 321: ...2 1 4 Turning on the External Background Music BGM Feature Guide 321 2 30 1 Background Music BGM...
Страница 324: ...324 Feature Guide 2 30 2 Outgoing Message OGM...
Страница 325: ...Section 3 Unified Messaging System Feature Guide 325...
Страница 375: ...Section 4 Network Features Feature Guide 375...
Страница 464: ...464 Feature Guide 4 3 6 Network ICD Group...
Страница 465: ...Section 5 System Configuration and Administration Features Feature Guide 465...
Страница 506: ...Feature Guide References 6 1 Capacity of System Resources 506 Feature Guide 5 2 4 Portable Station PS Features...
Страница 560: ...560 Feature Guide 5 6 7 PING Confirmation...
Страница 561: ...Section 6 Appendix Feature Guide 561...
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Страница 579: ...Feature Guide 579 Notes...