Configuring Rtp Base Udp Port; Rtp Control Protocol Extended Reports (Rtcp Xr) - AudioCodes Mediant 3000 User Manual

SIP User's Manual
•
'RFC 2198 Payload Type' (RFC2198PayloadType) - defines the RTP redundancy
packet payload type according to RFC 2198.
•
'RFC 2833 TX Payload Type' (RFC2833TxPayloadType) - defines the Tx RFC
2833 DTMF relay dynamic payload type.
•
'RFC 2833 RX Payload Type' (RFC2833RxPayloadType) - defines the Rx RFC
2833 DTMF relay dynamic payload type.
3. Click Submit to apply your settings.

12.3.4 Configuring RTP Base UDP Port

You can configure the range of UDP ports for RTP, RTCP, and T.38. The UDP port range
can be configured using media realms in the Media Realm table, allowing you to assign
different port ranges (media realms) to different interfaces. However, if you do not use
media realms, you can configure the lower boundary of the UDP port used for RTP, RTCP
(RTP port + 1) and T.38 (RTP port + 2), using the 'RTP Base UDP Port' (BaseUDPport)
parameter. For example, if the Base UDP Port is set to 6000, then one channel may use
the ports RTP 6000, RTCP 6001, and T.38 6002, while another channel may use RTP
6010, RTCP 6011, and T.38 6012. The range of possible UDP ports is 6,000 to 64,000
(default base UDP port is 6000).
The port range is calculated using the 'RTP Base UDP Port' (BaseUDPport) parameter as
follows: BaseUDPPort to (BaseUDPPort + <channels -1> * 10)
The maximum (when all channels are required) UDP port range is calculated as follows:

Mediant 3000/TP-6310: BaseUDPport to (BaseUDPport + 4031*10) - for example, if
the BaseUDPPort is set to 6,000, then the UDP port range is 6,000 to 46,310

Mediant 3000/TP-8410: BaseUDPport to (BaseUDPport + 4031*10) - for example, if
the BaseUDPPort is set to 6,000, then the UDP port range is 6,000 to 46,310
Notes:
The procedure below describes how to configure the RTP base UDP port using the Web
interface.

To configure the RTP base UDP port:
1. Open the RTP/RTCP Settings page (Configuration tab > VoIP menu > Media
submenu > RTP/RTCP Settings).
2. Set the 'RTP Base UDP Port' parameter to the required value.
3. Click Submit.
4. Reset the device for the settings to take effect.

12.3.5 RTP Control Protocol Extended Reports (RTCP XR)

RTP Control Protocol Extended Reports (RTCP XR) is a VoIP management control that
defines a set of metrics containing information for assessing VoIP call quality and for
diagnosing problems. RTCP XR (RFC 3611) extends the RTCP reports defined in RFC
3550 by providing additional VoIP metrics. RTCP XR information publishing is implemented
in the device according to <draft-johnston-sipping-rtcp-summary-07>. This draft defines
how a SIP User Agent (UA) publishes the detailed information to a defined collector. RTCP
Version 6.4
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The device allocates the UDP ports randomly to the channels.
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If you are using Media Realms (see 'Configuring Media Realms' on page
182), the port range configured for the Media Realm must be within this
range defined by the BaseUDPPort parameter.
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12. Media
November 2011