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—
380
Feature Manual
4.1.1 SIP (Session Initiation Protocol) Trunk
Summary of Contents for KX-NS700
Page 16: ...16 Feature Manual Table of Contents...
Page 17: ...Section 1 For Your Safety Feature Manual 17...
Page 20: ...20 Feature Manual 1 1 1 For Your Safety...
Page 21: ...Section 2 Call Handling Features Feature Manual 21...
Page 59: ...632 Maximum Number of Agents Feature Manual 59 2 2 2 Incoming Call Distribution Group Features...
Page 109: ...Operating Manual References 1 2 1 Basic Calling Feature Manual 109 2 5 4 Trunk Call Features...
Page 195: ...Operating Manual References 1 4 2 Holding a Call Feature Manual 195 2 13 1 Call Hold...
Page 326: ...326 Feature Manual 2 30 2 Outgoing Message OGM...
Page 327: ...Section 3 Unified Messaging System Feature Manual 327...
Page 377: ...Section 4 Network Features Feature Manual 377...
Page 466: ...466 Feature Manual 4 3 6 Network ICD Group...
Page 467: ...Section 5 System Configuration and Administration Features Feature Manual 467...
Page 560: ...560 Feature Manual 5 5 7 PING Confirmation...
Page 561: ...Section 6 Appendix Feature Manual 561...
Page 578: ...578 Feature Manual 6 5 6 PFMPR Software File Version 004 6xxxx...
Page 579: ...Feature Manual 579 Notes...