S

sales force

activating toll-free dedicated circuit and, 197

carrier, 17–18

creating unreasonable expectations, 333

finding hardware vendors through, 19

as information resource, 338

self-PICing your line, 124–125

Service Management System (SMS) database. See also RespOrg

reserved status in, 70

toll-free numbers and, 67

services. See telecom services

Session Description Protocol (SDP)

rogue RTPs and, 314

VoIP calls and, 312

Session Initiation Protocol (SIP), VoIP and, 311–312

700 test

confirming new long-distance service with, 126

validating long-distance carriers with, 237–238

severely erred seconds, 264

ship-to-shore calls, costs of, 52

shore-to-ship calls, costs of, 52

shoulder surfing, calling card fraud and, 39

Signaling System Seven (SS7) protocol, 143–145

SIP (Session Initiation Protocol), VoIP and, 311–312

611, reaching local carrier customer service with, 115

slamming

preventing with PIC freeze, 116–117

recovering from, 117–119

small businesses, evaluating toll-free service needs of, 73–74

SMS (Service Management System) database. See also RespOrg

reserved status in, 70

toll-free numbers and, 67

softphone, VoIP service and, 318

spammers, avoiding legal action against, 335–336

special service numbers, international calls to, 51

SS7 (Signaling System Seven) protocol, 143–145

standard international blocks, arranging, 52

standard interval message, handling, 335

start protocol, dedicated circuits and, 137–139

static, troubleshooting, 224–225

straight-through cables, versus crossover, 277–278

strategies, for responding to business growth, 20–21

stutter dial tone, overlapping calls and, 105–106

subletting, carriers and, 11

summary pages, reviewing invoice, 90–95

switched calls

comparing with dedicated circuit calls, 216–218

troubleshooting inbound long-distance, 214

troubleshooting local, 214–215

troubleshooting outbound long-distance, 213

switched lines

changing long-distance carriers with, 121–127

overflow routing to, 182–183

switched phone systems

checking for misdialed calls, 236

cost of, versus dedicated phone system, 36–37

determining provisioning issues with, 234

test dialing from different local carrier, 243–245

test dialing over different long-distance carrier, 241–245

understanding costs of, 34–35

validating local carrier network, 238–240

validating long-distance carrier, 236–238

versus dedicated long-distance circuits, 15–17

switched service, defined, 113

switched toll-free numbers. See also toll-free numbers

ordering, 178–179

troubleshooting, 245–253

versus dedicated, 165

switchless resellers

overview, 12–13

validating long-distance carriers and, 237

value of noticing, 334