Cisco SPA1112 - Page 94

Voice Parameters
Provisioning Guide for Cisco SPA100 and SPA200 Series Analog Telephone Adapters 94
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<Handle_VIA_received> If you select yes, the ATA processes the received parameter
in the VIA header (this value is inserted by the server in a
response to any one of its requests) If you select no, the
parameter is ignored. Select yes or no from the drop-down
menu.
Default setting: no
<Handle_VIA_rport> If you select yes, the ATA processes the rport parameter in
the VIA header (this value is inserted by the server in a
response to any one of its requests) If you select no, the
parameter is ignored. Select yes or no from the drop-down
menu.
Default setting: no
<Insert_VIA_received> Inserts the received parameter into the VIA header of SIP
responses if the received-from IP and VIA sent-by IP values
differ. Select yes or no from the drop-down menu.
Default setting: no
<Insert_VIA_rport> Inserts the rport parameter into the VIA header of SIP
responses if the received-from IP and VIA sent-by IP values
differ. Select yes or no from the drop-down menu.
Default setting: no
<Substitute_VIA_Addr> Lets you use NAT-mapped IP:port values in the VIA header.
Select yes or no from the drop-down menu.
Default setting: no
<Send_Resp_To_Src_Port> Sends responses to the request source port instead of the
VIA sent-by port. Select yes or no from the drop-down menu.
Default setting: no
<STUN_Enable> Enables the use of STUN to discover NAT mapping. Select
yes or no from the drop-down menu.
Default setting: no
<STUN_Test_Enable> If the STUN Enable feature is enabled and a valid STUN server
is available, the ATA can perform a NAT-type discovery
operation when it powers on. It contacts the configured STUN
server, and the result of the discovery is reported in a Warning
header in all subsequent REGISTER requests. If the ATA
detects symmetric NAT or a symmetric firewall, NAT mapping
is disabled.
Default setting: no