|Table of Content Zone|
To create or modify a Media List:
Modifying a Media List
Creating a Media List
Click the Create Media List () icon at the top of the Media List View page.
Panel borderStyle none Caption 0 Figure 1 Create Media List
Media List - Field Definitions
Name/description for the Media List.
Media Profiles List
Specifies a list of Media Profiles to be used in this Media List.
The order of the codec profile controls the order in which the codecs will be listed in the SIP message(s) sent to the peer. They should be listed in the order of user preference; the more desirable codecs listed first (above). The following are options to move/add/edit the profile:
When selecting the G729 profile: If your device supports only G729a, then be sure to configure Silence Suppression to Disable. The G729a codec does not support Silence Suppression.
SBC SWe Lite: The G.722 codec does not support Silence Suppression.
Crypto Profile ID
Specifies the Media Crypto Profiles to be used with this Media List.
Each Media List is configurable with the DSCP value to be used for media flow. All media flows that are created using this media list share the same DSCP value. Typically, a SIP Signaling Group selects the media list to be used for the calls using that Signaling Group. The default value is 46 and the allowed range is [0..63]. The configured value should be chosen according to the QoS policies of the IP network traversed by the media packets.
Specifies either RTCP or RTCP-XR usage for this profile
RTCP: The Sonus SBC 1000/2000 sends basic RTCP messages to the peer.
RTCP-XR(Extended Reports): The RTCP-XR packets have more information, however, some SIP endpoints may not be handle the \-XR packets, in which case basic RTCP should be specified.
RTCP-XR (Real Time Control Protocol - Extended Reports) provides packet transport quality metrics. The metrics are designed to supplement the packet-loss metric in RTCP and the roundtrip delay measurement provided by RTCP. They provide metrics for IP Packet Delay Variation based on the IPDV metric defined in, metrics reporting the activity of the RTP end system's receiver's jitter buffer, and metrics reporting "errored" and "severely errored" seconds.
For more information about this topic, see RFC 5093.
Dead Call Detection
Specifies whether or not to use RTCP-based Dead Call Detection (DCD).
DCD is accomplished by monitoring incoming RTCP packets. If this feature is enabled, and if no RTCP packets are received from the peer for a period of 30 seconds, the call will be considered "dead", and disconnected. DCD should be disabled if the peer does not send RTCP packets.
Specifies where or not to use Voice Activity Detection and send PT13 packets when on.
Gain Control - Field Definitions
Allows you to control the gain or loss (in decibels) to either the received or transmitted signals.
Specifies the gain or loss in decibels to apply to received signals. (Packet → PCM direction).
Specifies the gain or loss in decibels to apply to transmitted signals (PCM ← Packet direction).
Passthrough/Tone Detection - Field Definitions
Specifies whether or not modem passthrough is enabled when using the G.711 codec.
If the user wants to support modem calls, this option should be Enabled. When Disabled, the
Controls whether or not the
CNG Tone Detection
Specifies whether or not the
Fax Tone Detection
Specifies whether or not the Sonus SBC 1000/2000 system will detect Fax tones produced by the terminating side fax machine. Fax tone detection(V.21 flags) is used when Fax calls are received from TDM to a Fax server and the voice call needs to be switched to a Fax call using T.38. If Fax tone detection is enabled, the
DTMF Signal to Noise
Normally, resetting the SBC Edge resets the DTMF Signal-to-Noise ratio to 0. This field allows you to permanently set the value from -3 dB to +6 dB.
DTMF Minimum Level
Enables configuration for the DTMF minimum level threshold. Valid entries: -48 to -14 dBm0. Default entry: -38 dBm0.
Digit Relay - Field Definitions
Digit (DTMF) Relay Type
Specifies how DTMF digits are passed through the data network; as normal voice or encoded as specified in RFC 4733 (RFC 2833).
RFC 4733 (RFC 2833): When a DTMF digit is detected in the voice stream coming from the TDM side, the digit is removed from the voice stream (going to the IP network), and is sent out-of-band using the RFC 4733 (RFC 2833) mechanism.
As Voice: The DTMF digits are sent in the voice stream without any special treatment.
Digit Relay Payload Type
Specifies the payload type used for RFC 4733 (RFC 2833) packets. Available only when RFC 4733 (listed as RFC 2833) is specified for Relay Type.