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NOTE: If the bandwidth is not configured, the unknownCodecPacketSize and unknownCodecBitRate are used for the pass-through call.

codec

codecEntry1-codecEntry12

<codecEntry ID> <codec_name> – Defines the codec entry priorities and codec names. See Codec Parameters table below for details.

Up to 12 codec configurations are supported by

the

dataCalls

N/A

Data calls pertaining to restricted or unrestricted digital data.

• initialPlayoutBufferDelay – Used for G.711 only. This is the initial playout delay for calls with a data bearer channel, for example, ISDN 64K data calls. This value is configured separately from the initial playout delay for voice channels (voiceInitialPlayoutBufferDelay) so providers can trade off delay on data calls versus the likelihood of jitter causing delay changes while the playout buffer adapts. Some data bearer calls are very sensitive to delay changes (such as H.320 video conferencing), so a higher initial delay should reduce the chance of jitter bursts causing problems. (range: 5-50 / default = 50).
• packetSize <10 | 20 | 30 | 40> – The maximum data packet size (Kilobits). 
  

• preferredRtpDataPayloadType – The RTP Payload Type included in the RTP header of the data packet.
  (range: 0-127 / default = 56)

Use this object to control DTLS-SRTP and DTLS fall-back behavior in this Packet Service Profile.

• dtlsCryptoSuiteProfile <profile name> – Name of  Crypto Suite Profile to attach to this Packet Service Profile.
• dtlsFlags
  
  • allowDtlsFallback <disable | enable> – Enable flag to allow fallback to standard RTP when cryptographic attribute negotiation fails (default = disable).
  • dtlsSctpRelay <disable | enable> –  Enable flag on both legs of the call to relay DTLS/SCTP streams to the endpoint (default = disable).

  • dtlsSrtpRelay <disable | enable> – Enable flag on both legs of the call to relay DTLS/SRTP audio and video streams to the endpoint. (default = disable).

  • enableDtlsSrtp <disable | enable> – Enable flag to allow Secure RTP.

NOTE: DTLS-SRTP relay is a licensed feature and requires an SRTP license to be installed on

the

NOTE: When a session contains DTLS-SRTP video stream or DTLS/SCTP application stream and there is no audio stream specified,

the

If ICE is part of session establishment in WebRTC (WRTC) scenario, the relay mechanism implemented for DTLS-SRTP and DTLS/SCTP is supported independent of ICE processing.

Refer to Configuring SBC for WRTC for additional WebRTC configuration details.

flags

N/A

See Packet Service Profile Flags table below for flag descriptions.

honorRemotePrecedence

N/A

Flag to set precedence of audio encoding priority order of the local packet service profile over the remote peers audio encoding priority order when creating the priority order of the audio encodings that are common to both. Options are:

• disable (default) – Applies precedence to local audio encoding priority order, local Secure RTP/RTCP settings and crypto suite priority order.
• enable – Applies precedence to the remote peer's audio encoding priority order. For ingress call legs, also applies precedence to remote peer's Secure RTP/RTCP settings and crypto suite priority order.

mediaPacketCos

0-7

Specifies Class of Service (COS) value to be set in the IEEE 802.1D User Priority field of media packets transmitted on a call leg that uses this Packet Service Profile. This parameter only has an effect if the network interface supports 802.1Q tagged Ethernet frames. (default = 0 which is interpreted as best effort).

packetToPacketControl

peerAbsenceAction

N/A

Specifies the action to take when mediaPeerInactivity timer expires (refer to Media System - CLI page).

• none – (default) Inactivity detection is disabled.
• peerAbsenceTrap – Choose this option to generate a trap if RTP inactivity is detected.
• peerAbsenceTrapAndDisconnect – Choose this option to generate a trap and tear down the call if RTP inactivity is detected.

0-128

Specifies the preferred RTP payload type in the RTP header of audio packets for this encoding. (default = 128). This parameter is only used for 8 kHz clock rate. DTMF payload type of each subsequent clock rate (16 kHz, 24 kHz, etc.) is incremented by 1.

NOTE: Using the default value of "128" for preferredRtpPayloadTypeForDtmfRelay implies that the preferred DTMF value (from the system configurable) is used for this profile.

NOTE: If interworkDtmfWithoutTranscoding is enabled, ensure preferredRtpPayloadTypeForDtmfRelay is set to a valid value (96-127). If preferredRtpPayloadTypeForDtmfRelay value is invalid (set to "128"), the system may fail to pick up the value configured using "set system dspPad rtpDtmfRelay" command because DSPs are not used for the call.

NOTE: The

For wideband (16 kHz) DTMF, the

Use this object to configure the Quality of Service (QoS) DSCP value for this Packet Service Profile.

• dtlsSctpDscp – Use

• this attribute to set the DSCP value in the Differentiated Services Field of the IP header for DTLS/SCTP packets that egress

• the

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  . (range: 0-255 / default = 0)
• msrpDscp – Use this attribute to set the DSCP value to use for egressing MSRP packets (range: 0-255 / default = 0).

• t140Dscp – Use this

• parameter to specify

• the DSCP value for T.140 packets. Note: If the call type is t140 , then configure the DSCP value as DSCP T140 in the QOSValues parameter. (Range: 0-63 / default = 0).

rtcpOptions

N/A

Use this object to specify Real Time Control Protocol (RTCP) options for the call. RTCP is used to report network traffic congestion data. Various actions (for example call disconnect) may be taken when congestion threshold settings are exceeded. See RTCP Options Parameters table below for details.

secureRtpRtcp

N/A

Specifies whether secure RTP Real Time Control Protocol (SRTP) is enabled for the call:

• cryptoSuiteProfile <profile name> – A unique identifier for the Cryptographic Suite Profile.
• flags – Possible values are disable/enable. The default value of each flag below is "disable".

  • allowFallback – Enable flag to allow fallback to standard RTP/RTCP when crypto attribute negotiation fails.

  • allowPassthru – Enable flag to allow

• • the

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    to pass-through SRTP media without authenticating, decrypting, or encrypting it internally.

• • The

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    will prioritize SRTP pass-through media over terminated SRTP media. When this flag is disabled,

• • the

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    terminates all SRTP and SRTCP media for authentication, encryption, or decryption.

• • NOTE: To use this flag, enableSrtp flag must be enabled.

  • enableSrtp – Enable this flag to enable secure RTP/RTCP.
  • resetEncDecROCOnDecKeyChange – Enable flag to reset Roll Over Counter for both encryption and decryption when decryption key changes.
  • resetROCOnKeyChange – Enable flag to reset the SRTP Roll Over Counter when the session key changes.
  • updateCryptoKeysOnModify – For an SRTP call, if this flag is enabled in Packet Service Profile and call leg mode is changed from sendonly/inactive/recvonly to sendrecv, the

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    generates a new set of crypto attributes.

sendRoutePSPPrecedence

N/A

Use this flag to allow audio encoding order preference in outgoing messages only.

• disable (default)
• enable

silenceFactor

N/A

The percentage of call time that silence is expected. This parameter is used to reduce expected call bandwidth. (range: 0-50 / default = 40).

silenceInsertionDescriptor

N/A

Use this object to define the Silence Insertion Descriptor (SID) attributes.

• g711SidRtpPayloadType – Specifies the G.711 Silence Insertion Descriptor (SID) RTP payloadType. (range: 0-127 / default = 19).
• heartbeat – By default, this flag is enabled to allow SID packets to be sent within a minimal interval during a silence period (at least one SID packet must be sent within a SID maximum packet time frame).
  • disable
  • enable (default)

t38

N/A

Use this object to specify T.38 data rate attributes using following parameters:

• dataRateManagementType:
  • type1LocalGenerationOfTcf – Type 1 data rate management requires that the Training Check Frame (TCF) training signal is generated locally by the receiving gateway. Data rate management is performed by the emitting gateway based on training results from both PSTN connections. Type 1 is used for TCP implementations and is optionally used with UDP implementations.
  • type2TransferOfTcf – (default) Type 2 data rate management requires that the TCF is transferred from the sending gateway to the receiving gateway rather than having the receiving gateway generate it locally. Speed selection is done by the gateways in the same way as they would on a regular PSTN connection. Data rate management type 2 requires the use of UDP and is not recommended for use with TCP.
• ecm – Use this flag to allocate DSP resources, when available, for T.38 Error Correction Mode (ECM) calls.
  • disable – (default) use normal resource allocation.
  • enable
• lowSpeedNumberOfRedundantPackets – This field specifies the number of redundant IFP messages sent in a UDP packet for T.38 low speed fax transmission, and applies only if the T.38 error correction type is redundancy. (range: 0-2 / default = 1).
• maxBitRate – Use this object to select the T.38 Maximum Bit Rate which controls and manipulates bits 11, 12, 13, and 14 in the DIS command received by the

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  from either the TDM circuit interface or the T.38 packet interface:
  • 2.4Kbits_s – For modem type ITU-T V.27ter fall-back mode.
  • 4.8Kbits_s – For modem type ITU-T V.27ter.
  • 9.6Kbits_s – For modem types ITU-T V.27ter and V.29.
  • 14.4Kbits_s – (default) For modem types ITU-T V.27ter, V.29, and V.17. This setting is used to constrain the type of modem modulation schemes.
• numberOfRedundantPackets – Use this parameter for high-speed fax relay to specify the number of redundant Internet Facsimile Protocol (IFP) messages sent in a User Datagram Packet (UDP) for fax transmission. (range: 0-2 / default = 1).
• protocolVersion – Use this parameter to specify the T.38 Fax protocol version to use.
  
  • 0 (default)
  • 3 

typeOfService

0-255

Use this object

to set the six most significant bits of the "Type of Service" byte in

the IP header

. Default value is 0.

videoCalls

N/A

Use this object to define video call parameters.

• audioOnlyIfVideoIsPrevented– By default, this flag is enabled to allow call to continue with the audio only portion if the video cannot be established for any reason.
  • disable
  • enable (default)
• codecListProfile – Name of the Codec List profile used to store precedence and purge lists of video codec MIME sub-types.
• ieee8021QVLanCos – IEEE-802 1Q VLAN Class of Service. (range: 0-7 / default = 0)
• ipv4Tos – IPv4 type of service. (range: 0-255 / default = 0)
• ipv6TrafficClass – IPv6 traffic class. (range: 0-255 / default = 0)
  

• NOTE: ipv6TrafficClass is not supported with H.323 calls.

• maxVideoBandwith – The maximum allowable session bandwidth (in kbps) for a call that includes video streams. This value Includes the bandwidth for all streams in the call (audio, video, BFCP, and so on). If "0" is set as the value, video calls are not allowed; and only audio calls can be set up following the normal allocation process (range: 0-50000 kbps / default = 10).
• videoBandwidthReductionFactor – The amount, as a percentage, to reduce the session bandwidth allocation for calls that include video streams. This setting only affects the internal allocation of bandwidth used for the calls (does not affect the signaling). For example: if the reduction factor is "20", the bandwidth allocated for calls is reduced by 20%. In other words, if the normal bandwidth allocation for calls is 1000 kbps, a 20% reduction equates to a new 800 kbps bandwidth. (range: 0-100 / default = 0).

voiceInitialPlayoutBufferDelay

1-

200

Use this parameter to configure the initial playout buffer delay value (in milliseconds)

. Select a value just slightly greater than the maximum expected packet jitter across the network.

The value must be in increments of 1 ms. (default = 10).

NOTE: Using a value above 50 ms is not recommended during normal operation.

Enable flag to set HD codecs as preferred codec over non-HD codecs even if transcoding is required. When flag is disabled, continue with existing PSP/IPSP behavior.

• disabled (default)
• enabled

When enabled, the following behavior is exhibited:

Codec selection priority from Answer message:

1. HD-HD pass-through
2. HD-HD transcoding
3. NB-NB pass-through
4. NB-NB transcoding
5. HD-NB transcoding

NOTE: This flag only applies when the

NOTE: If forceRoutePSPOrder flag is enabled, this flag does not affect the ordering of outgoing offer.

NOTE: The flag transcoderFreeTransparency overrides this flag. If  transcoderFreeTransparency is enabled, this flag is ignored.

MatchOfferedCodecGroupIfNbOnly

Enable this flag to allow the

If this flag is disabled, the SBC

• disable (default)
• enable

NOTE: The flag transcoderFreeTransparency overrides this flag. If transcoderFreeTransparency is enabled, this flag is ignored.

Enable this flag to allow digit detection for pass-through calls on digits sent to the network.

• disable (default)
• enable

NOTE: Enable this flag to allow interworking without DSP resources for this Packet Service Profile.

INFO: See Digit Detect Send Enabled Settings for KPML table below to understand which PSP leg to enable this flag for the desired KPML functionality.

• disable (default)
• enable

When enabled on both the Ingress and Egress call leg, the DSCP value in the IP header of the media packets is transparently passed through the system. Once media is received from the peer, any value set in the typeOfService field on the Packet Service Profile has no effect when dscpPassthrough is configured on both legs for the associated call.

• disable (default)
• enable

forceRoutePSPOrder

Enable this flag to send the outgoing offer in the same order as egress route Packet Service Profile irrespective of HD/NB priorities.

• disable (default)
• enable

NOTE: If this flag is enabled, HDCodecPreferred flag does not affect the ordering of outgoing offer.

NOTE: The flag transcoderFreeTransparency overrides this flag. If  transcoderFreeTransparency is enabled, this flag is ignored.

Enable flag to interwork DTMF with out-of-band RFC2833 without the use of transcoding (DSP resources).

• disable (default)
• enable

NOTE: If interworkDtmfWithoutTranscoding is enabled, ensure preferredRtpPayloadTypeForDtmfRelay is set to a valid value (96-127). If preferredRtpPayloadTypeForDtmfRelay value is invalid (set to "128"), the system may fail to pick up the value configured using "set system dspPad rtpDtmfRelay" command because DSPs are not used for the call.

When enabled, the

• disable (default)
• enable

NOTE: This configuration applies to all pass-through calls. It works independently from the Audio Transparency feature and reserveBwForPreferredAudioCommonCodec flag.

preferNBPassthruOverHDTranscode

Enable this flag to allow the

When disabled, the SBC

• disable (default)
• enable

NOTE: This flag is valid only if HDCodecPreferred flag is enabled, and is applied when selecting a codec from answer.

NOTE: The flag transcoderFreeTransparency overrides this flag. If  transcoderFreeTransparency is enabled, this flag is ignored.

By default, the SBC

• disable (default)
• enable

NOTE: This flag is active for a call when both the PSPs have this flag enabled. If this flag is disabled in any of the PSPs, the flag is not applied.

Enable flag to generate a new SSRC (using a random value) along with a new time stamp timestamp on a new RTP stream whenever a resource is reactivated (due to change in codec, etc.). SSRC randomization reduces the probability of collision in large groups and simplifies the process of group sampling that depends on uniform distribution of SSRCs.

• disable (default)
• enable 

Enable flag to use direct media as needed.allow text media calls using T.140 codec.

• disable (default)
• enable

NOTE: The

Refer to Text Codecs for additional details of text codec support.

Enable flag to use direct media as needed.

• disable (default)
• enable

validatePeerSupportForDtmfEvents

Flag to validate peer support for DTMF events. Enable this flag for all peer devices that support RFC 4733.

• disable (default) – 

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  does not validate the presence of DTMF events in the offer or answer from the peer. If DTMF relay is enabled, 

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  transmits DTMF digits received from the other leg to this peer using the named event RTP payload.
• enable – The

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  validates the presence of DTMF events in the offer or answer from peers that support RFC 4733. If DTMF Relay is enabled and events 0-15 are received (with no other combination or subset of events), the

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  forwards the events in the egress leg to this peer using the named event RTP payload. When the

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  is configured for a pass-through call and it receives DTMF events other than 0-15 from the ingress peer, it does not offer any DTMF events to the egress endpoint.

Enable flag to use RTCP for the call.

• disable (default)

• enable

NOTE: The below attributes are only available to configure RTCP once this flag is enabled.

If this flag is enabled, the

When the call is HELD, and a RE-INVITE is sent, the

• disable (default)

• enable

• none – Take no action.
• packetLossTrap – Generate trap.
• packetLossTrapAndDisconnect – Generate trap and disconnect.

Enter a value to specify the packet loss threshold value

to trigger a packet loss action (default = 0).

This parameter is required if RTCP is enabled. When set to “0”, no packet loss inactivity detection is performed. See Command Examples below for an example configuration.

This setting can be used in conjunction with  mediaPeerInactivity (refer to mediaPeerInactivity parameter in Media System - CLI page)

.

Enable this flag for the ingress or egress Packet Service Profile for the

• disable (default)
• enable

Refer to SDP Support for additional RTCP Mux details.

NOTE: This flag is only applicable for SIP Trunk Groups.

Specifies control of RTCP-XR block processing and statistics collection.

• disable (default) - retains existing default behavior (no statistics collection).
• relay - Allows end-to-end XR block relay (only) and statistics collection if end-to-end peer negotiation for RTCP-XR (a=rtcp-xr:voip-metrics) relay is successful; otherwise XR block is dropped.
• relayOrTerminate - Allows end-to-end XR block relay or per-leg termination if end-to-end negotiation for RTCP-XR relay is not successful (only one leg supports RTCP-XR). This setting guarantees XR block termination and statistics collection on any call leg where XR blocks are received.

terminationForPassThrough

Use this flag to specify RTCP termination behavior for pass-through calls.

• disable

• (default)– RTCP is relayed between the end points for pass-through calls. 
• enable – Enable flag (as well as rtcp flag) on one leg to terminate RTCP sessions on each leg for pass-through calls. If RTCP and RTCP termination is enabled on one leg of a pass-through call, RTCP is terminated and originated for that leg. If RTCP is enabled on both legs on the pass-through call, irrespective of terminationForPassThrough settings, RTCP is always relayed.