1. A method comprising: receiving, at a service of a plurality of services, a request to initiate a push to talk over cellular (PoC) session via a network, wherein the request is based at least in part on a user selection of the service; receiving a voice command including voice data at the service via the PoC session, wherein each service of the plurality of services is implemented on a respective server that includes a respective translation module; translating the voice data to instructions understandable to an operations module of the service; performing, by the operations module, the translated instructions to form a graphical response; and forming a communication that includes the graphical response to be communicated to a client device of the user over the network.