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The 

Spacevars
0 series4

supports sending an authenticated INVITE with the same call ID as an INVITE challenged with 401 (Unauthorized) or 407 (Proxy Authentication Required) response using the "Same Call Id for Required Authorization" flag which is set in Egress IP Attributes for IP Signaling Profile. This flag is only available to configure when both of the following flags are enabled:

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This feature is supported via both PSX and ERE routing using the configuration settings described below.

PSX Routing

From In the PSX IP Signaling Profile associated with the trunk group, set the following flags:

1. Enable "AuthCode Headers" flag in the transparency section.
2. Enable "Status code 4xx-6xx" relay flag.
3. Enable "Same Call Id for Required Authorization" egress flag.
4. Under SIP headers and parameters, set "Generate Call-ID Using" to "Do not use ingress call-id".

ERE Routing

From In the SBC IP Signaling Profile associated with the trunk group, set the following flags:

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Note
The default behavior of the Spacevars 0 product is to not use the ingress call id in IP Signaling Profile for this configuration.

Info
For detailed configuration commands, please refer to following: PSX configuration: s PSX Provisioning Guide (see PSX Documentation page on Documentation and Support Portal). ERE configuration:  EMA: Signaling Profiles - Ip Signaling Profile CLI: IP Signaling Profile - SIP - CLI

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