Canada voice guidelines
Voice calling guidelines for Canada (CA), covering reachability, caller ID formats, DTMF support, and emergency services.
Locale overview
| Field | Value |
|---|---|
| Country | Canada |
| ISO code | CA |
| Region | North America |
| Dialing code | +1 |
Reachability
Canada supports all inbound and outbound call types without restrictions.
| Call type | Inbound | Outbound |
|---|---|---|
| Domestic | Supported | Supported |
| International | Supported | Supported |
| Toll-free | Supported | Supported |
Caller ID
| Call type | Direction | Format |
|---|---|---|
| Domestic | Inbound | E.164 |
| Domestic | Outbound | E.164 |
| International | Inbound | Local format (non-guaranteed) |
| International | Outbound | E.164 |
| Toll-free | Inbound | E.164 |
| Toll-free | Outbound | E.164 |
DTMF support
RFC 2833 is the supported DTMF format for Canada. DTMF signaling is supported for both inbound and outbound calls.
Emergency services
Outbound calls to emergency services numbers (911 and 933) are supported in Canada.
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 Canada.