R

reachability, 332

Real-Time Protocol. See RTP

RECON (Reverse Engineering Conference), 358

redirect server, 57

redirection attacks, 186, 456460

redirectpoison tool, 456459

REFER request, 58

references

ACM, 320321

Asterisk, 350

DoS, 428

eavesdropping attacks, 165

flooding attacks, 146

fuzzing, 386387

interception/modification, 200

network eavesdropping, 165

signaling attacks, 481

SIP, 63

social threats, 516

softphones, 363

Solution Reference Network Design, 217219

SPIT, 503504

voice phishing, 516

reghijacker tool, 445455

REGISTER requests

breaking authentication, 440441

described, 58

registrar server, 57

registration addition, 435438

registration hijacking, 446452

registration removal, 431, 434

SIPSCAN tool, 9095

username enumeration, 7478

REGISTER scanning, 9093, 95

registrar server, 57

registration addition, 435438

registration hijacking, 186, 438456

registration removal, 430435

remote access

IP PBX, 311313

TFTP server, 35

Remote Switched Port Analyzer (SPAN) mode, 151

resources. See references

resumes, 1819

Retina scanner, 69, 70

Reverse Engineering Conference (RECON), 358

RFC ports, 47

RIPE registry, 23

robustness testing, 370

rogue applications, 186199

rogue SIP B2BUA, 186191, 193, 196

rogue SIP proxy, 186191, 197199

rootkits, 353

routers

ACM, 259

Asterisk, 326

Cisco, 217

DoS attacks against, 10

fragrouter tool, 182183

RST flag, 39

RST packets, 3941

RTCP (RTP control protocol), 64

RTP (Real-Time Protocol), 6466

RTP audio, 65

RTP control protocol (RTCP), 64

RTP insertion/mixing, 471480

RTP packets, 6466, 471480

RTP traversal, 353

rtpflood tool, 418419

rtpinsertsound tool, 473480

rtpmixsound tool, 366367, 473480

R-value, 126