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UCM630X Series User Manual
Version 1.0.2.25
Transparent Call-Info header
UCM supports transparent call info header in order to integrate GDS door system with GXP21XX Color phones,
the UCM will forward the call-info header to the phone in order to request the live view from GDS door system
and give the option to open the door via softkey.
Figure 222: Transparent Call-Info