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Use the Access Transfer Policy Profile Type window to specify the policy profile type for a selected Access Transfer profile (Atprofile).

From the SBC main screen, go to All > Profiles > Signaling > Atprofile > Access Transfer Policy Profile Type

The Access Transfer Policy Profile Type window opens.

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1	Access Transfer Policy Profile Type Window

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Select the Atprofile you want to configure from the Atprofile list. The Edit Access Transfer Policy Profile Type pane opens.

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1	Edit Access Transfer Policy Profile Type

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Use the following table to select a profile type and then click Save.

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1	Parameters: Edit Access Transfer Policy Profile Type

Field

Description

Access Transfer Policy Profile Type

Select a policy profile type for the Atprofile. The options are:

ATCF (default) - The Access Transfer Control Function (ATCF) in the serving (visited if roaming) network provides the proxy role as well as B2BUA functionality (based on the call flow being processed) as defined in the IMS specifications. When SRVCC is enhanced with ATCF, the ATCF is included in the session control plane for the duration of the call before and after Access Transfer. The ATCF may be co-located with one of the existing functional entities within the serving network (i.e. P-CSCF or IBCF).

EATF - The Emergency Access Transfer Function (EATF) provides IMS-based mechanisms for enabling service continuity of IMS emergency sessions. It is a function in the serving (visited if roaming) IMS network, providing the procedures for IMS emergency session anchoring and PS to CS Access Transfer. The EATF acts as a routing B2BUA which invokes third party call control (3pcc) to enable Access Transfer.

Refer to ATCF and EATF Support for additional details.