Some services are degraded

TLDR: A temporary slowdown caused by saturation in our API gateway layer increased response times until they exceeded the edge-network timeout, causing a 524 HTTP response for some API requests.

Timeline in PST
01:00 AM First elevated 524 error responses detected
06:35 AM Rolled back recent backend release (no improvement)
07:19 AM Rolled back related network changes (no improvement).
08:22 AM Scaled up API gateway
09:36 AM Scaled up API gateway further
10:00 AM Reverted the previous night's...

We'll be adjusting our database configuration during a brief maintenance window of up to 30 minutes. During this period, API requests may experience intermittent delays or errors, but we do not anticipate any significant disruption.

We appreciate your patience and apologize for any inconvenience this may cause.

We are scheduling a 4 hour maintenance window 2025-06-28 1-5pm PT to upgrade the version of our dedicated SIP infrastructure. There may be some disruption to calls during this time.