Hi,
You should engage your Cisco Account team or partner to help with this. You need to first prepare a plan and based on that the network can be designed or implemented. Some of the things you need to know would be:
>> How many agents are needed right now and the scope of expansion in the future
>> Will it be a single site or a multi-site setup
>> What are the exact features that you require for the callers, based on that you can check the datasheets of Express and Enterprise deployments
>> You need to decide on the software and the IP Phone models that the agents would use to handle the calls
>> If the call flow requires/mandates hardware resources like Transcoder or IOS MTP then you need to check the correct gateway type that can handle the requirement
>> Apart from that you need to look into the QoS setup which is very important for any Voice/Video/Call center deployment
If you can check the Contact Center design guides it will be helpful to you.
HTH
Manish
