RTP
The RTP page allows an administrator to configure RTP settings. If NATs are involved in the SIP communications, Brekeke SIP Server will relay RTP packets so that the RTP packets can reach the SIP clients which are behind NAT.
RTP exchanger
Item | Default value | Explanation |
RTP relay | auto | When set to “on”, RTP packets will be relayed through the Brekeke SIP Server. When set to “auto”, Brekeke SIP Server will decide whether or not to relay RTP automatically. For example, when Brekeke SIP Server detects a NAT, RTP packets are automatically relayed. |
RTP relay (UA on this machine) |
auto | When set to “auto”, Brekeke SIP Server will decide automatically whether to relay RTP or not. When set to “off”, Brekeke SIP Server will not relay RTP packets for the SIP UAs running on the server computer. |
RTP relay even with ICE | no | When set to “yes”, RTP packets will be relayed through the Brekeke SIP Server even when ICE is available and UA’s can send RTPs each other directly. |
Minimum Port | 10000 | The minimum UDP port number to transmit RTP packets from. |
Maximum Port | 29999 | The maximum UDP port number to transmit RTP packets from. |
Minimum Port (Video) |
0 | The minimum UDP port number to transmit RTP packets for Video stream from. If set to “0”, the server uses the same port range as Audio. |
Maximum Port (Video) |
0 | The maximum UDP port number to transmit RTP packets for Video stream from. If set to “0”, the server uses the same port range as Audio. |
Port mapping | source port | Selects a destination port number for the Brekeke SIP Server to send RTP packets to SIP UAs behind Far-End NAT.
Designates whether to use the source port from RTP packets (when set to “Source Port”) or the RTP port specified in SDP (when set to “sdp”). |
Send UA’s remote address | auto | If set to “auto”, Brekeke SIP Server will decide whether to send RTP packets to UA remote UP address or the IP address specified in SDP
If set to “yes”, Brekeke SIP Server will send RTP packets to UA remote IP address If set to “no”, Brekeke SIP Server will send RTP packets to the IP address specified in SDP. |
Timeout
Item | Default value | Explanation |
RTP Session Timeout | 600000 | The timeout for detecting RTP packets when Brekeke SIP Server is relaying RTP. [milliseconds] |
Identify Media Streams
Item | Default value | Explanation |
Label Attribute (RFC4574) | on | Identify media streams with Label Attribute (RFC4574) |
Content Attribute (RFC4796) | on | Identify media streams with Content Attribute (RFC4796) |
Order of the ‘m’line | on | Identify media streams with order of the ‘m’line |