The original form of telephony that transmits voice as continuous electrical signals over copper wires. Analog lines are prone to noise and eavesdropping and are being replaced by digital systems.
A set of tools and rules that allows software systems to communicate. In telephony, APIs connect apps to calling, messaging, or contact-management services (e.g., Twilio, MySudo).
Voice calls made through an app instead of a carrier network. These calls use data/Wi-Fi and can include encryption or virtual numbers for privacy.
An attack vector is the method or pathway a cybercriminal uses to gain unauthorized access to a system or network to deliver a malicious payload or exploit a vulnerability.
The amount of data that can be transmitted per second over a network. Higher bandwidth enables clearer calls and better video quality in VoIP telephony.
A fixed radio tower that connects mobile phones to the carrier’s cellular network. Every mobile call routes through a base station in the local area.
Wireless calling via Bluetooth connection between a phone and headset or car system. Convenient but not encrypted end-to-end, meaning call data can be intercepted at the device level.
Displays the caller’s number (and sometimes name) on the receiver’s device. Spoofing caller ID is a common scam tactic. Privacy tools like MySudo can mask or randomize caller ID.
A telecommunications company providing mobile or fixed-line phone service (e.g., AT&T, Verizon). Carriers manage SIM cards, towers, and billing systems.
Traditional telephony technology that creates a dedicated line for each call. Once standard in the PSTN, it’s largely replaced by packet switching (used in VoIP).
A system where phone services (calling, voicemail, messaging) are hosted on the internet rather than physical phone lines. MySudo’s secure calling runs on similar cloud principles.
The specific information (like a phone number or email) you use to communicate. In privacy-first telephony, this is decoupled from your real identity—the model MySudo uses.
An incident where sensitive information is accessed or stolen. When phone numbers appear in breaches, they can be linked to personal identities and used for scams.
A virtual number assigned within a VoIP or PBX system that lets external callers reach a specific extension directly without going through a receptionist.
In modern identity tech, a DID is a unique, cryptographically verifiable digital identity that you control. MySudo is aligned with this concept—users manage multiple independent digital identities.
The tones generated when pressing keys on a phone (used for navigation menus).
Security method ensuring that only the sender and receiver can access call or message content. MySudo uses E2EE to protect communication data.
The international numbering plan defining how phone numbers are formatted globally (e.g., +1 for U.S., +44 for U.K.).
An embedded SIM chip built into devices that can be reprogrammed digitally. Convenient, but still tied to carrier accounts—unlike virtual numbers that bypass SIM identity.
A wired telephone connection that’s physically installed in one location (e.g., home or office phone).
A security system that controls incoming and outgoing network traffic. Firewalls help prevent unauthorized VoIP or telephony access.
When scammers disguise their caller ID to appear legitimate. Common in phishing, tech-support scams, and robocalls.
A device or service that connects different types of networks (e.g., converting analog voice calls into digital VoIP packets).
A standard for mobile networks used by most of the world’s carriers. GSM defines how calls, SMS, and data are transmitted over cellular networks.
A mix of traditional and cloud-based systems; for example, a business that uses landlines and VoIP together during a transition phase.
The protocol for transmitting data over the web. HTTPS adds encryption and is relevant for securing telephony APIs and VoIP connections.
A unique identifier stored in your SIM card that ties your mobile number to your account and personal data. MySudo avoids IMSI exposure by not using carrier SIMs.
A digital identifier assigned to each internet-connected device. VoIP calls depend on IP routing, which can be anonymized or protected for privacy.
The use of the internet protocol to transmit voice, video, or fax. Also known as VoIP, it underpins modern calling apps and enterprise systems.
Variations in packet delivery time during a VoIP call, which can cause audio distortion. Stable bandwidth and QoS (Quality of Service) reduce jitter.
The process by which two parties securely share encryption keys for E2EE communication. MySudo automatically performs this for every secure call or message.
The delay between sending and receiving voice data in a call. High latency leads to lag or talk-over. VoIP systems optimize routing to minimize it.
The ability to transfer (port) your phone number between carriers or providers.
Information about communication—such as who called, when, and how long—not the content itself. Traditional phone networks store metadata extensively. MySudo minimizes it for privacy.
A company providing wireless service infrastructure (e.g., T-Mobile, AT&T).
A company that provides mobile service using another carrier’s infrastructure. MySudo operates independently of both, offering internet-based telephony.
A security process requiring more than one method of verification. Avoid SMS-based MFA when possible, due to SIM swap risks.
A network process that allows multiple devices to share a single IP address. Important for routing VoIP calls within private networks.
A privacy feature that hides one party’s real phone number. Used in apps like MySudo, Uber, and Airbnb to protect user identity during calls.
A temporary code used for authentication. Often sent via SMS but safer through encrypted apps or hardware tokens.
Voice or messaging services delivered over the internet, bypassing traditional carriers (e.g., WhatsApp, MySudo, Signal).
Modern data transmission method that breaks information into packets sent individually over a network. Used by VoIP systems.
A business telephone system that manages internal calls and routes external ones. Cloud PBX platforms are now common.
Fraud attempts through deceptive messages or calls (vishing, smishing) that trick users into sharing information.
Communication systems designed to minimize data exposure and metadata retention. MySudo exemplifies this model.
The world’s traditional circuit-switched telephone system, still in use but gradually being replaced by internet-based telephony.
A network feature that prioritizes real-time traffic like voice over data to ensure call quality.
The modern upgrade to SMS offering multimedia and encryption features, though adoption varies by carrier.
An automated phone call delivering a prerecorded message, often for scams or spam marketing.
The network device that directs VoIP traffic. A misconfigured router can cause call drops or poor audio.
A protocol that sets up, manages, and terminates VoIP sessions. It’s the backbone of most IP-based calling systems.
A small chip linking your phone to a carrier. MySudo avoids SIM dependency, reducing SIM swap and identity risks.
Phishing via SMS text messages that try to lure users into revealing credentials or clicking malicious links.
Impersonating a trusted number or caller ID to deceive recipients.
A software-based phone that uses a computer or mobile app instead of physical hardware.
The process of detecting and blocking unwanted or fraudulent calls.
The technology and processes that enable voice communication over a distance. Once analog and wired, now digital and internet-based.
An extra layer of security requiring a password plus a secondary method like a code or app. Avoid SMS-based 2FA due to phone number exposure risks.
Encryption protocol that secures VoIP traffic between servers.
Integrated platforms combining voice, video, chat, and email in one interface (e.g., Microsoft Teams).
A phone number not publicly available in directories; early analog equivalent of digital number masking.
A phone number that operates over the internet without being tied to a SIM or physical line. MySudo provides virtual numbers for secure, private communication.
Voice phishing — fraudulent phone calls where attackers impersonate trusted entities.
Technology that sends voice over the internet instead of traditional phone lines. Foundational to MySudo’s secure calling model.
An open-source technology enabling voice, video, and data sharing directly between browsers or apps. Used in many privacy-focused platforms.
Allowing only approved contacts or domains to reach you. MySudo users can control communication on a per-identity basis.
Making calls over Wi-Fi rather than a cellular connection, improving coverage indoors and abroad.
A privacy model in which even the service provider cannot read or access user data. MySudo employs a similar principle for message and call privacy.
