Which statement best describes digit analysis?

Which statement best describes digit analysis?

• A. The process of collecting digits for routing decisions by comparing to patterns.
• B. The process of creating new dial patterns for every gateway.
• C. The process of authenticating users before routing.
• D. The process of recording digits for billing only.

Answer: (A)

Digit analysis is about how the system uses the digits a caller dials to decide where to send the call. It collects the digits as they are entered and compares them against configured digit patterns or route patterns. When enough digits have been gathered and a pattern matches, the call is routed accordingly, applying any necessary pattern transformations. This enables correct routing to external trunks, internal extensions, or special services based on the dialed number. The other ideas miss the core function: creating new dial patterns for every gateway is a dial-plan design task, not the analysis of digits itself. Authenticating users before routing is a security/authentication concern, not how digits are analyzed for routing. Recording digits for billing only describes capture for billing, not the routing decision process.

Digit analysis is about how the system uses the digits a caller dials to decide where to send the call. It collects the digits as they are entered and compares them against configured digit patterns or route patterns. When enough digits have been gathered and a pattern matches, the call is routed accordingly, applying any necessary pattern transformations. This enables correct routing to external trunks, internal extensions, or special services based on the dialed number.

The other ideas miss the core function: creating new dial patterns for every gateway is a dial-plan design task, not the analysis of digits itself. Authenticating users before routing is a security/authentication concern, not how digits are analyzed for routing. Recording digits for billing only describes capture for billing, not the routing decision process.