 redundancy, 133 media encryption, 124 netbooks, 301 media gateways (voice/video), SIP network demarcation, 108 trunking for SP networks, 66-68 billing, 111 media shuffling, 28 codec choice, 109 microphones, 2 fault isolation, 110 migration to SIP trunks, planning for, identifying, 252 QoS marking, 111 cost analysis, 245 service provider UNI compliance, emergency call policy, 246 future new services, evaluating, 247 statistics, 110 network design implications, network design assessing, 246 best practices, 257-258 production user community phases, implications, assessing, 246 defining, 246-247 non-IP Phone IP Telephony devices, 6 security implications, evaluating, 248 traffic volumes, assessing, 246 mobility, 108 modem traffic, 155-156 OOD (Out-of-Dialog) Options Ping, monitoring device monitoring, SIP trunking for monitoring SIP trunks, 138-139 SP networks, 74-75 operations management, SBC vendor procedures, specifying, 252 technical requirements, 176-178 SIP trunks, OOD Options Ping organizational responsibility, method, 138-139 assessing, 253 PSTN TDM gateway failover 319 post-paid billing servers, SIP trunking for SP networks, 61 PANs (Personal Area Networks), post-project assessment, conducting, 41-42 301-302 pay as you use charges, 51 presence PBX (private branch exchange), 6 Cisco Telepresence, 302-303 peering SBC (Session Border information, sharing, 27 Controllers), SIP trunking for SP production service, 256 networks, 71-73 production user community phases, performance, SBC vendor technical defining, 246-247 requirements, 178-180 protecting against SIP protocol person-to-machine communications, attacks, 120-122 protocols person-to-person communications, 298 applications, 142-143 physical connection options, 103 endpoints, 143 physical SIP trunk delivery, 251 selecting, best practices, 258-259 pilot trial, 252 SIP normalization, 145-148 clear success criteria, defining, 253 SP UNI, 144 executing, 35-37,254-255 provider selection, best practices, 256 length of trial, specifying, 253 PSTN access organizatio