El Salvador voice guidelines
El Salvador voice guidelines
Voice calling guidelines for El Salvador (SV), covering reachability, caller ID formats, DTMF support, and emergency services.
Locale overview
| Field | Value |
|---|---|
| Country | El Salvador |
| ISO code | SV |
| Region | Central America |
| Dialing code | +503 |
Reachability
| Call type | Direction | Supported |
|---|---|---|
| Domestic | Inbound | Yes |
| Domestic | Outbound | Yes |
| International | Inbound | Yes |
| International | Outbound | Yes |
| Toll-free | Inbound | Not applicable |
| Toll-free | Outbound | Not applicable |
Caller ID
| Call type | Direction | Format |
|---|---|---|
| Domestic | Inbound | E.164 |
| Domestic | Outbound | Local (non-guaranteed) |
| International | Inbound | E.164 (non-guaranteed) |
| International | Outbound | E.164 |
DTMF support
DTMF signaling uses RFC 2833 and is supported in both directions — inbound and outbound calls.
Emergency services
Calls to emergency services numbers in El Salvador are not supported. Do not route emergency calls through this platform.
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 El Salvador.