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- ESI eCloud Hosted PBX
- ESI ePhoneGO2
- SIP Phones
- ESI eCloud Internet Fax
- ESI eTeams Connector
- eCloud Click-to-Call
- SMS Texting
- ESI Webphone
- ESI SIP Trunks
- Inbound PSTN Carriers
- Outbound PSTN Carriers
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ESI engineers will perform a scheduled software upgrade to multiple phone system servers on Thursday, June 4, 2026, beginning at 8:00 PM CDT. This update affects a small portion of our infrastructure and is low risk.
No service interruption or degradation is expected. The maintenance window is four hours.
The scheduled maintenance is now underway. We'll keep you updated on our progress.
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The maintenance is now complete. Thanks for your patience.
[Complete] ESI eCloud Phone System Maintenance
Began: Ended: Duration: -
- ESI eCloud Hosted PBX
- SIP Phones
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ESI engineers will be applying a software update to ESI ePhone 3 v2 desk phones across all customer sites. Updates will be performed in batches nightly from May 28 through June 4, 2026.
Each phone will reboot only once total (not nightly) sometime between May 28 and June 4. The reboot will occur overnight between 10:00 PM – 5:00 AM CDT, and will take approximately 5 minutes.
No action is required on your part.
The scheduled maintenance is now underway. We'll keep you updated on our progress.
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The maintenance is now complete. Thanks for your patience.
[Complete] ESI Desk Phone Software Update and Phone Reboot
Began: Ended: Duration: - Past notices
- No further notices from the past 7 days.