P

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P recommendations
packet analysis tools
packet based signal transmission
packet encoding, SIP
packet inspection
packet interval 2nd
packet loss 2nd
packet loss concealment (PLC) 2nd
packet overhead
packet rates, codecs
packet sniffing 2nd
packet structure
Packet8
packetcable
packetization, latency caused by
packets per second (pps)
pager, message notification for
ParkedCall command, Asterisk
ParkedCalls command, Asterisk Manager API
parking.conf file
Parliant Software PhoneValet
patch notification newsletter
pathping utility 2nd
pattern matching in extension definitions
PBX (private branch exchange) 2nd 3rd
        access control for
        centralized functionality of
        connecting dial-tone trunks to
        core of
        dial-plan for
        hosted PBX services
        LCR feature
        limitations of
        placement in WAN
        routing to IAXTel, poor sound quality from
        server crash
PBX system vendors
PCI interface cards, for Asterisk
PCM (pulse code modulation) 2nd 3rd 4th
PDF files, faxing
Peer, Asterisk
peer-by-peer codec selection
peered layout
peering arrangements
per- user cost model
performance limits
Perl modules for Asterisk
permanent virtual circuit (PVC)
phone company missing switchover date
phonedev module, Asterisk
PhoneValet software
phreaking
physical layer, OSI model
physical presence policies
Ping command, Asterisk Manager API
plain old telephone service (POTS) 2nd 3rd
platform for VoIP, choosing
playback
Playback command, Asterisk
Playtones command, Asterisk
PLC (packet loss concealment) 2nd
PoE (Power over Ethernet) 2nd
PoE device vendors
point-to-point (private) trunks
port restrictions
port scans
POTS (plain old telephone service) 2nd 3rd 4th
POTS pass-through, for emergency system
POTS trunks 2nd
power failures, surviving
power injection
Power over Ethernet (PoE) 2nd
power provisioning
PowerdSine
pps (packets per second)
PPTP
PRACK method, SIP 2nd
Practical VoIP with VOCAL 2nd
predictive dialing
presence applications 2nd
presentation layer, OSI model
PRI (Primary Rate Interface) 2nd 3rd
pri debug span command, Asterisk CLI
pri intense debug span command, Asterisk CLI
pri no debug span command, Asterisk CLI
privacy management 2nd
PrivacyManager command, Asterisk
private analog lines
private digital trunks
private hunt groups
private trunks 2nd
proceeding state, H.323 protocol
productivity gains
projects
        ACD (automatic call distribution) based on area code
        Asterisk logging configuration, tuning
        audit network performance
        call accounting
        call parking
        configuring IP phone and VoIP network
        connecting multiple VoIP networks
        custom codec selection and independent call path
        dial-around for emergency dispatch
        DiffServ decision point
        distinctive ring detection
        fax-to-email gateway
        FMFM (find-me-follow-me) application
        H.323 gatekeeper
        hardening a softPBX
        interactive directory on SIP display phone
        Linux box as fax machine
        logging and controlling packets with iptables
        making IP-to-IP phone call
        MD5 authentication for SIP passwords
        multi-office dial-plan using PSTN trunks
        packet inspection with Ethereal
        private hunt group
        PSTN trunks, grouping
        SDP capabilities negotiation
        simulating simple key system with ring group
        sounds for IVR, creating
        testing IP phone with Asterisk
        tracing call setup with log comparison
        trunk channel with POTS line
        voice mail system
protocols, signaling
proxies, SIP
PSAP (public safety answering point) 2nd 3rd
PSTN (Public Switched Telephone Network) 2nd 3rd
        access control for
        accounting and billing
        attacking IP network through
        components of
        core of
        FCC regulations for
        for intraorganization calls
        inability to receive calls from
        ITU-T standards for
        limitations of 2nd
        phreaking on
        QoS for
        security for
        snooping on
PSTN connect points
        location and trunks required for
        routing calls at
PSTN distribution frames
PSTN trunks
        Centrex trunks
        dial-tone trunks
        failures of
        grouping
        POTS trunks
        transitioning to, timing of
PSTNgw
public safety answering point (PSAP) 2nd 3rd
public safety protocol
PUC or PUCO (Public Utilities Commission)
pulse code modulation (PCM) 2nd 3rd
pure IP 2nd
PVC (permanent virtual circuit)
PVCs, frame-relay