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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SIP)
OL-3410-01
Chapter 5 Parameters and Defaults
SIP Parameters
SIPPort
Description
This parameter is used to configure the port through which the Cisco ATA listens for incoming SIP
requests and sends outgoing
SIP requests.
Value Type
Integer
Range
1 to 65535
Default
5060
Voice Configuration Menu Access Code
201
MediaPort
Description
Use this parameter to specify the base port where the Cisco ATA transmits and receives RTP media. This
parameter must be an even number. Each connection uses the next available even-numbered port for RTP.
Value Type
Integer
Range
1 to 65535
Default
16384
Voice Configuration Menu Access Code
202
OutBoundProxy
Description
The SIP Outbound Proxy Server is a SIP proxy server which can be different from the Registration Proxy
Server (specified in the GkOrProxy parameter) and to which all outgoing SIP requests are sent. Outgoing
SIP responses are not affected by this out-bound-proxy and are still sent according to the VIA header
and source address of the incoming SIP requests.