Caller ID: the number presented with an incoming call
Short answer: Caller ID communicates the originating telephone number to the receiving side. A device may display that number, a saved contact name or a separate network lookup result.
A displayed identity is not a guarantee that the caller is trustworthy. Use only numbers you are authorized to present and verify unexpected requests through an independent channel.
Use the definition to check your setup
Caller ID communicates the originating telephone number to the receiving side. A device may display that number, a saved contact name or a separate network lookup result.
A displayed identity is not a guarantee that the caller is trustworthy. Use only numbers you are authorized to present and verify unexpected requests through an independent channel.
Caller ID: the number presented with an incoming call — points to check
| Review point | CallGlobal guidance |
|---|---|
| Concept | Caller ID communicates the originating telephone number to the receiving side. A device may display that number, a saved contact name or a separate network lookup result. |
| Configuration implication | A displayed identity is not a guarantee that the caller is trustworthy. Use only numbers you are authorized to present and verify unexpected requests through an independent channel. |
| Product boundary | Consult the feature list; a glossary term does not identify an included capability. |
Where the CallGlobal line fits
Your number account provides the public telephone identity, its communication controls and the SIP credentials for compatible software. Other capabilities belong to the application or phone system you choose.
Review the live product feature list before relying on an additional function. Number porting, hosted IVR, voicemail, call recording and a public customer API are not included.
Protect the line and the account
- Keep account and SIP passwords private, including in support screenshots.
- Confirm the active rental term before relying on incoming communication.
- Use the complete international number and only an authorized caller identity.
Frequently asked questions
What does this term describe?
Caller ID communicates the originating telephone number to the receiving side. A device may display that number, a saved contact name or a separate network lookup result.
How does this affect practical configuration?
A displayed identity is not a guarantee that the caller is trustworthy. Use only numbers you are authorized to present and verify unexpected requests through an independent channel.
Does every telephone concept name an included product feature?
No. A glossary explains terminology. The product feature page and your number dashboard identify the functions provided with a CallGlobal line.
Continue exploring
- CNAM
- STIR/SHAKEN
- web dialer
- call from your browser
- local, mobile or toll-free
- customer support use case
- Call forwarding: send an incoming call to another destination
Sources
- FCC: Caller ID Spoofing (as of September 2026)
- IETF: RFC 3325, Private Extensions to SIP for Asserted Identity (as of September 2026)