Refer to the exhibit.
dial-peer hunt 2
voice service saf
profile trunk-route 1
session protocol sip interface Loopback1 transport tcp port 5060
!
profile dn-block 1 alias-prefix 1972555
pattern 1 type extension 4XXX
!
profi1e dn-block 2
pattern 1 type global 14087071222
!
profile callcontrol 1
dn-service
trunk-route 1
dn-block 1
dn-block 2
!
!
!
channel 1 vrouter SAF asystem 1
subscribe callcontrol wildcarded
publish callcontrol 1
!
Which CSS is used at the HQ Cisco Unified Communications Manager to reroute calls via the PSTN when the SAF network is unavailable?
A.
the phone device CSS
B.
the phone line CSS
C.
the phone line/device combined CSS
D.
the SAF CSS configured on the CCD requesting service
E.
the phone AAR CSS configured at the phone device
F.
No special CSS is required. If SAF patterns are accessible, the PSTN reroute is automatic.