Linksys SPA922 Cisco SPA9000 Voice System Using Setup Wizard Installation and - Page 116

Using a STUN Server, STUN Server

Get Linksys SPA922 - IP Phone With Switch PDF manuals and user guides
UPC - 745883570836
View all Linksys SPA922 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 116 highlights

Maintaining Your SPA9000 Voice System Using the Advanced Features Menu 6 Using a STUN Server Configuring NAT mapping in the SPA9000 is recommended only if the ITSP network does not provide a Session Border Controller functionality. You can use STUN as a mechanism to discover the NAT mapping in the SPA9000. This solution requires that the following conditions are met: • The external (Public) IP address is assigned dynamically by the network. • The router uses an asymmetric NAT mechanism. ! CAUTION STUN is considered a method of last resort and should be used only if the other methods are unavailable. STUN is a viable option only if your router uses asymmetric NAT. STEP 1 Enter the STUN Server's IP address in the STUN Server field. Example 69.231.1.88 STEP 2 Click Next to preview the parameters the Wizard will send to the SPA9000. STEP 3 Click OK to close the parameter preview dialog box and cause the Wizard to submit the changes to the SPA9000 and reboot it. SPA9000 Voice System Installation and Configuration Guide for Setup Wizard 114

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
Maintaining Your SPA9000 Voice System
Using the Advanced Features Menu
SPA9000 Voice System Installation and Configuration Guide for Setup Wizard
114
6
Using a STUN Server
Configuring NAT mapping in the SPA9000 is recommended only if the ITSP
network does not provide a Session Border Controller functionality. You can use
STUN as a mechanism to discover the NAT mapping in the SPA9000. This solution
requires that the following conditions are met:
•
The external (Public) IP address is assigned dynamically by the network.
•
The router uses an asymmetric NAT mechanism.
!
CAUTION
STUN is considered a method of last resort and should be used only if the other
methods are unavailable. STUN is a viable option only if your router uses
asymmetric NAT.
STEP 1
Enter the STUN Server’s IP address in the
STUN Server
field. Example 69.231.1.88
STEP 2
Click
Next
to preview the parameters the Wizard will send to the SPA9000.
STEP 3
Click
OK
to close the parameter preview dialog box and cause the Wizard to
submit the changes to the SPA9000 and reboot it.