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At a high level, the functions performed by the EATF are:
Figure 1: SBC SBC IMS Deployment - A-SBC as EATF Provisioning
Figure 2: EATF call flow
he call flow description for Configuring Access SBC as EATF#Figure 2 is as follows:
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In the remaining steps, the 200 OK SIP response is forwarded as appropriate.
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set global signaling srvcc eStnSr +1-237-555-5555 callLingerTimer 32 set addressContext default zone ZONE_CORENW srvcc eatf enabled set addressContext default zone ZONE_CORENW dialogTransparency disabled set addressContext default zone ZONE_CORENW disableZoneLevelLoopDetection enabled |
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set profiles services sipResourcePriorityHeaderProfile "RPH-1" rphEmergencyMatchingConfig "esnet" "1" commit set profiles services sipResourcePriorityHeaderProfile "RPH-1" sendEgressRphForEmergency esnet 1 commit set profiles services emergencyCallProfile "EMG-ECSCF" resPriorityHeaderProfile "RPH-1" sosInContactOfRegister "enable" commit set profiles services emergencyCallProfile EMG-ECSCF prefix 911 comm set profiles services emergencyCallProfile EMG-ECSCF urnPrefix service:sos.fire comm set profiles services emergencyCallProfile EMG-ECSCF sosInContactOfRegister enable comm |
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set addressContext default zone ZONE_ECSCF sipTrunkGroup TG_TOWARDS_ECSCF signaling registration requireRegistration required-nonpriority useRUriForRegisterRouting enabled set addressContext default zone ZONE_ECSCF sipTrunkGroup TG_TOWARDS_ECSCF signaling prefRequireTransparency "enabled" deRegParentWithChildDereg "enabled" validateAor "enabled" condIncMethInAllowHdr "enabled" usePsxRouteForEmergencyCall "enabled" set addressContext default zone ZONE_ECSCF sipTrunkGroup TG_TOWARDS_ECSCF callRouting useRouteSet rcbNextHopAndStored set profiles signaling ipSignalingProfile IPSP_PCSCF egressIpAttributes privacy transparency enable set addressContext default zone ZONE_ECSCF sipTrunkGroup TG_TOWARDS_ECSCF services emergencyCallProfile EMG-ECSCF |
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set addressContext default zone ZONE_CORENW sipTrunkGroup TG_TOWARDS_IMSCORE services preconditions transparent set addressContext default zone ZONE_ECSCF sipTrunkGroup TG_TOWARDS_ECSCF services preconditions transparent commit |
Select "EATF" profile from the "Access Transfer Policy Type" option.
Figure 3: Selecting EATF Profile
Attach the "EATF" profile to the Ip signaling profile of a Trunk Group.
Figure 4: Attaching Attaching EATF profile to the IPSP Trunk group
The following profiles are configured:
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set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader To set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader From set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Path set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Accept set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Reason set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Server set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Warning set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Call-Info set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Alert-Info set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Error-Info set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader User-Agent set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Referred-By excludedMethods register,subscribe,info,publish,message,options,update,bye set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Request-URI set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Accept-Language set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader P-Called-Party-Id set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Require set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Proxy-Require set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Security-Client set profiles services transparencyProfile TRANS_PROF_ECSCF sipHeader Security-Verify commit set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/pidf+xml excludedMethods register,invite,subscribe,info,publish,message,options,update,bye set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/pidf+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/rlmi+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody message/external-body set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/pidf+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/cpim-pidf+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/pidf-diff+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/dialog-info+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/simple-filter+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/resource-lists+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/conference-info+xml set profiles services transparencyProfile TRANS_PROF_ECSCF sipMessageBody application/simple-message-summary commit set profiles services transparencyProfile TRANS_PROF_ECSCF state enabled commit set addressContext default zone ZONE_ECSCF sipTrunkGroup TG_TOWARDS_ECSCF services transparencyProfile TRANS_PROF_ECSCF commit |
The following fields must be configured:
PSX IPSP Zone Index Profile
Common Ip Attributes_ecscf Anchor
The following "Common IP Attributes" must be enabled in PSX under "IP SIGNALING PROFILE":
PSX IPSP Common Ip Attributes
Relay Flags
The following "Relay Flags" must be enabled under "Ip Signaling profile":
PSX IPSP Common Ip Attributes Relay Flags
Transparency Flags_ecscf Anchor
The following "Transparency Flag" must be enabled under "Ip Signaling Profile":
PSX IPSP Common Ip Attributes Transparency Flags
The following "Egress IP Attributes" must be enabled:
PSX IPSP Common Ip Attributes Egress Ip Attributes
Ingress Ip Attributes
The following "Ingress IP Attributes" must be enabled:
PSX IPSP Common Ip Attributes Ingress Ip Attributes
The following profiles/fields must be enabled:
PSX IPSP Sip Trunk Group towards E-CSCF
For configuring SBC towards MSC, refer to Configuring SBC Towards MSC.