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| _Transparency_Profile_Note |
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| _Transparency_Profile_Note |
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Use the Flags window to configure IP attribute flags within an IP signaling profile. Different sets of flags apply to H323 and SIP trunk groups. To View and Edit FlagsOn the SBC main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > IP Signaling Profile > Common IP Attributes > Flags. H323 FlagsOn the Flags window, choose the IP Signaling Profile as DEFAULT_H323 to view the flags for H323 trunk groups. The Edit Flags window opens showing flags that apply to H323 trunk groups. Figure 1: Trunk Provisioning - Common IP Attributes H323 Flags  Image Modified
H323 Trunk Group Flags Parameter | Description |
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Audio Codec Change Through Empty Tcs | Enable flag to perform audio codec change (e.g. G.711 fax fallback) using empty Terminal Capability Set (TCS). When disabled, the performs audio codec change using request mode. | | Clearmode For Data Calls | This parameter is used to enable the clearmode function for data calls. When enabled, the SBC enables clearmode. When disabled, the SBC provides legacy G.711 behavior. | | Disable Constrained Capacities | Set this flag to present a full TCS to its peer during call setup or media modification. When disabled, the presents only the selected codec in the TCS, and follows up with a full TCS after media establishment. | | Include G729With G729a When Offer Psp Has G729a | Use this flag to control whether the H.323 Service Group includes G.729 along with G.729A in the network offer when the offer Packet Service Profile has G.729A. | | Map Dpm To Sendrecv For Initial Dialog | When this parameter is enabled, direction attribute a=sendrecv is sent in the outgoing initial invite when a=inactive is received in the Invite from other side, or a=sendrecv is sent in responses to initial invite when the response from other side is received with a=inactive. | | Send Empty Tcs | Enable this flag to send an empty TCS to the peer to restart the peer’s forward channel if there is an address update in a direct media case. | | Send RTCP Port In SDP | When enabled, the SBC adds the attribute,a=rtcp:<rtcpPort> to the audio and video m-lines in the outgoing SDP (RTCP port mentioned will be the SBC RTP port + 1). When disabled, the SBC does not add the attribute a=rtcp:<rtcpPort> to the audio and video m-line in the outgoing SDP. | | Select Core Stream For Multi Stream Audio Or Image Call | When enabled, the SBC selects the core stream based on the Route PSP from multiple audio or image streams received in the incoming offer. The dependent flag Disable Non Core Audio And Image Streams is visible for configuration only when this flag is enabled. - Disabled (default)
- Enabled
| | Disable Non Core Audio And Image Streams | This dependent flag is visible only when the flag Select Core Stream For Multi Stream Audio Or Image Call is enabled. Use this option to disable all non-core audio and image streams by setting the port to "0" irrespective of codecs allowed by the Route PSP and T.38 configuration. If enabled, the SBC relays all non-core audio and image streams with port set to "0". - Disabled (default)
- Enabled
| | Terminal Portability Interworking | Controls Terminal Portability Interworking service between ISUP and SIP. When enabled, Terminal Portability Interworking service is enabled. When disabled, Terminal Portability Interworking service is disabled. The service enables a terminal to be moved from one socket to another or a call to be moved from one terminal to another within one call while the call is active. |
SIP FlagsOn the Flags window, choose the IP Signaling Profile as DEFAULT_SIP to view the flags for SIP trunk groups. The Edit Flags window opens showing flags that apply to SIP trunk groups. Figure 2: Trunk Provisioning - Common IP Attributes SIP Flags Image Modified
SIP Trunk Group Flags Parameter | Description |
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| Accept Alert Info | Enable this flag to have the SBC process the URI specified in the Alert-info header received in a 180 Ringing message, and to use the tone specified in the Alert-Info header as the Local Ring Back Tone to play. | Info |
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| When this flag is enabled, the tones processed override any incoming tones in the media stream. For example, when Accept Alert Info is enabled, the SBC plays the tone specified in the Alert-info header of the 180 ringing message overriding the in-band tones included in the 180 Ringing message. |
| | Add Path Service Route | Enable this flag to allow the to add two Path headers in a REGISTER request towards the Core (SBC acting as P-CSCF or IBCF) (Create Service Path Header must be enabled) OR to add two Service-Route headers in the 200 OK response to a REGISTER towards the P-CSCF (SBC acting as IBCF) (Create Service Route Header must be enabled). | Info |
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| When the No Service Route Hdr For Emergency Registration flag is enabled, the SBC does not add Service-Route headers for emergency registrations even if the Add Path Service Route and Create Service Route Header flags are enabled. |
| | Add PCharging Func Addr | Specifies whether or not to add a P-Charging Function Address header. | | Ai To Pem Interworking | Use this flag is configure interworking between Alert-Info and P-Early Media headers. - Disable (default) - the SBC plays tones based on the LMSD format.
- Enable - the SBC plays tones based on the interworking between the Alert-Info and P-Early Media headers.
| | Call Holding Interworking | Controls the Call Hold Interworking service between ISUP and SIP is enabled or disabled. The service converts an ISUP call hold to an SIP call hold, or vice-versa. Call holds are invoked by ISUP or SIP/ H.323 endpoints. When disabled, call hold indications are dropped. | | ClearMode for Data Calls | This parameter is used to enable the clearmode function for data calls. When enabled, the SBC enables clearmode. When disabled, the SBC provides legacy G.711 behavior. | | Contact Transparency For Is Focus Media Tag | Enable this flag to transparently pass the Contact header in outgoing messages when the "isFocus" parameter is received in the Contact header. | | Create Path Header | Controls whether or not the SBC creates a Path header in outgoing SIP REGISTER messages. | | Create PCharging Vector | Controls whether or not a P-Charging-Vector header is created in outgoing SIP messages. Creating P-Charging-Vector headers is supported in INVITE and REGISTER messages. It is also supported in SUBSCRIBE, OPTIONS, and NOTIFY messages when received from the same direction as the REGISTER message. | | Create PVisited Network Id | Specifies whether or not to create the P-Visited-Network-ID header. | | Create Service Route Header | Controls whether or not the SBC creates a Service-Route header in outgoing SIP messages. | Info |
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| When the No Service Route Hdr For Emergency Registration flag is enabled, SBC does not add Service-Route headers for emergency registrations even if the Add Path Service Route and Create Service Route Header flags are enabled. |
| | Customized Session Timer Behavior | Specifies the session timer behavior expected by the remote peer. When enabled, the remote peer expects customer-specific session timer behavior. When disabled, the remote peer expects the standard session timer behavior. | | Disable Also Header | Specifies whether to use the Also header. When enabled, the SBC ignores the Also header if received from the remote peer and the SBC does not send the Also header to the remote peer. When disabled, the SBC uses the Also header for call forwarding as usual. | | Disable Host Translation | Specifies whether to enable or disable host name translation. This applies to all URL style headers that require transparency and defines the processing that the SBC is to apply to the host name portion of these headers before forwarding. | | Disable Media Lock Down | If the SBC offers both pass-thru and transcode codecs, the Minimize Relaying Of Media Changes From Other Call Leg flag effectively suppresses |
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