Portugal voice guidelines
Voice calling guidelines for Portugal (PT), covering reachability, caller ID formats, DTMF support, and emergency services.
Locale overview
| Field | Value |
|---|---|
| Country | Portugal |
| ISO code | PT |
| Region | Europe |
| Dialing code | +351 |
Reachability
Portugal supports inbound and outbound calling for domestic, international, and toll-free number types. No carrier-imposed outbound restrictions or additional outbound requirements apply.
| Number type | Inbound | Outbound |
|---|---|---|
| Domestic | Supported | Supported |
| International | Supported | Supported |
| Toll-free | Supported | Supported |
Caller ID
Caller ID behavior varies by call type and direction.
| Call type | Direction | Caller ID format |
|---|---|---|
| Domestic | Inbound | E.164 |
| Domestic | Outbound | Local (non-guaranteed) |
| International | Inbound | E.164 (non-guaranteed) |
| International | Outbound | E.164 |
| Toll-free | Inbound | E.164 |
| Toll-free | Outbound | Local (non-guaranteed) |
DTMF support
DTMF tones use RFC 2833 format and are supported for both inbound and outbound calls.
Emergency services
Calls to emergency services numbers in Portugal are not supported. Do not rely on this platform for emergency calling.
Compliance note
These guidelines summarize carrier requirements at the time of publication and do not constitute legal counsel. Verify that your implementation complies with all applicable telecommunications regulations in Portugal.