Sloan,
If the ACCESS you are referring to is the ACCESS software from NexTalk, it includes almost all those options you identified. When a person subscribes to ACCESS, they get 9 communication options:
Video Remote Interpreting
Video Phone
VRS
TRS
TTY (incoming and outgoing)
IP Relay
VCO
HCO
Chat
Messaging
Incoming faxes
Additionally, The NexTalk software can be loaded on any windows computer, laptop or tablet. Our mobile versions (iOS and Android) will be available in November. The ACCESS program is part of the ACCESS platform, a Communications Platform designed specifically for the deaf and hard of hearing...and those who communicate with them.
So If you choose ACCESS, you get many communication options in one program.