Internet telephony - Security measures.

Asterisk hacking[electronic resource]. …で: (言語・文字資料 (印刷物))

Practical VoIP security[electronic resource] / …で: (言語・文字資料 (印刷物))

VoIP and PBX security and forensics[electronic resource] :a practical approach / …で: (言語・文字資料 (印刷物))

Internet telephony

Computer networks

Internet telephony

Computer networks

Internettelefonie.

Communications Engineering, Networks.

Security Science and Technology.

Forensic Science.

Internet telephony

Telephone

Engineering.

Systems and Data Security.