This is a sink element. It is used to stream audio via RTP (Real-Time Transport Protocol). That is an established IP streaming protocol.
| ! | RTP for AoIP |
| The RTP sink element can also be used to configure of audio-over-IP streams (AES67, Dante, etc.). This is a good idea when complex and in-depth configuration of the stream is necessary, to a degree that the Audio over IP sink element does not allow. |
| E | Cautious configuration recommended |
| The RTP sink element includes many options that require an in-depth understanding of IP technology and network routing to configure properly. This is especially true of the Expert view options. Caution is advised when configuring these options. For most applications it is enough to configure a Destination with the desired Host / IP and RTP Port and leave the other options untouched. |
| Element | Description |
|---|---|
| Destinations | Shows all configured destinations for the RTP stream. Existing Destinations can be configured like a New Entry (see below). |
| New Entry |
Options for a new RTP stream to add to the destinations. Note that you have to click +Add at the bottom of this field to add a new destination. |
| Active | Toggles whether the respective destination is streamed to ("On") or not ("Off"). This can be used to disable Destinations you temporarily do not want to stream to, but that should stay available for future operations. |
| Host / IP | Sets the target to stream to. This can be a host IP address, a multicast IP address, or a DNS name. |
| RTP port |
Sets the target port to stream to. Note that this should be an even number. Odd port numbers are allowed by aixtream, but are not conforming to RFC 3550. |
| Local RTP port | Setd the transmission port to stream from. |
| Multicast interface | Dropdown: Sets the network interface to use for multicast streaming. |
| Multicast TTL | Sets the maximum number of routers/switches the IP packets can pass through. |
| DSCP | Sets the Differentiated Services Code Point in the IP header of IP packets streamed by this sink. This changes the priority of these IP packets. |
| RTCP port | Sets the target RTCP port to stream to. |
| Connect RTCP | Toggles whether RTCP connection is required ("On"). |
| Allocated port | Toggles whether the local RTP port is reserved exclusively for streams from this sink ("On"). |
| Packet size | Sets the IP packet size. |
| Log RTP Statistics | Toggles whether RTP statistics are fully logged ("On"). |
| Announce via SAP | Toggles whether the connection is announcted via SAP. This helps multicast session be found in the network. |
| Call profile | Dropdown: Sets the Call Profile to use for this connection. |
| SDP | Dropdown: Shows the SDP of the current connection while the PIPE is active. This may be useful to troubleshoot connection issues by comparing it with information in the receiving system. |
| NTP header extension (RFC6051) |
Toggles NTP header extension “On” or “Off”. See RFC 6051 for details. |
| Wall clock timestamps | Toggles whether RTP time stamps are taken from the wall clock ("On"). |
| RTCP Canonical Name (CNAME) |
Sets a uniquely identified RTP target. See RFC 6222 for details. |