A customer wants to deploy the Cisco Business Ready Teleworker solution, but is currently using a traditional (non-IP) PBX for voice services. What would you recommend to this customer?（）
A. Deployment of Business Ready Teleworker with VoIP is not recommended.
B. The customer’s existing PBX must first be replaced with Cisco IP Telephony solution.
C. Business Ready Teleworker and Cisco IP Telephony can be deployed in parallel to the existing PBX， integrating the two with trunking.
Deployment is recommended only for full-time Teleworkers who have no other corporate phone.
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