Since the beginning of Grandstream, I am missing a strong standardization across all products.
E.g. LDAP-phonebook, transfer, call-progress-tones, some P-Values and the UI are working unnecessary different on GRP, GXP, GXV, WP and DP series. The same for GXV cams and doorcam. The same for the integration into UCM.
There is a standard behavior needed for all Grandstream products (e.g using 1 number field for LDAP or 3 / Transfer via transfer-button or via hangup and so on).
Sometimes it becomes better…