# VOIP Checklist * **VoIP-001** – VLAN hopping from data network to voice network * **VoIP-002** – Extension Enumeration & Number Harvesting * **VoIP-003** – Capturing SIP Authentication * **VoIP-004** – Eavesdropping Calls * **VoIP-005** – CallerID spoofing * **VoIP-006** – RTP injection * **VoIP-007** – Signaling Manipulation * **VoIP-008** – Identification of insecure services * **VoIP-009** – Testing for Default Credentials * **VoIP-010** – Application level vulnerabilities * **VoIP-011** – Voice Mail Attacks * **VoIP-012** – Phone Firmware Analysis --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://alomancy.gitbook.io/guides/methodologies/voip-checklist.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.