... guidelines for Cisco IP Telephony common infrastructure and call processing. For information on Cisco IP Telephony design, refer to the Cisco IP Telephony Solution Reference Network Design documentation ... Cisco Unified Contact Center Express Solution Reference Network Design, Release 4.1 vii Cisco Unified Contact Center Express Solution Reference Network Design, Release 4.1 Preface Purpose This ... of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco...