Bosch GV4 Panel

Working through a project that integrates video, access control and intrusion through a single system interface. Am being advised by an integrator that the Bosch GV4 Panel will not work for this application due to the fact that "it is missing a network port". It was my understanding that the GV4 panel will work when paired with the B420 (which is the network interface). The integrator further advised me that the GV4 panel has failed in the field and may no longer be an option in the Bosch line up. Does anyone have any experience with this? Does this sound relevant? I cannot find ANYTHING on line to support these claims, but unfortunately the project has come to a standstill due to the issues brought forth by the integrator.