# Upgrade to SIP infrastructure

- Provider: [Vapi](https://down.guide/providers/vapi)
- Confidence: Confirmed
- Impact: Maintenance
- lasted 1h
- started 2026-10-19 04:00 UTC
- SIP Inbound, SIP Outbound
- id: DWN-b9b0ed9c23
- Official page: https://status.vapi.ai/incidents/1091231

## Updates from Vapi
### 2026-10-19 04:00 UTC: update
We will be updating servers to increase resiliency. During this maintenance period, some in-progress calls may be disrupted. However new calls will still be answered.

### 2026-10-19 05:00 UTC: update
Maintenance ended

From the builder: does your app depend on Vapi? [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=vapi) detects problems in your own logs without hand-written monitors, and you can ask it in plain language which errors mention Vapi.

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down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=DWN-b9b0ed9c23), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.