Dear Client,

This maintenance has been postponed until the 4th of March.

As part of our continuous improvements to our platform, we will be moving our REST API end points in Eastern US to a new set of load balancers.

This will only impact clients that have IP whitelisting in place for our IPs connecting to:
* api.clxcommunications.com
* api-sms.us.clxcommunications.com
* sms.api.sinch.com
* us.sms.api.sinch.com
* us1.sms.api.sinch.com
* geo.sms.api.sinch.com

The maintenance is scheduled below:
Type: Scheduled Maintenance

Maintenance: REST API
Start Time: 2021-03-04 08:00 UTC
End Time: 2021-03-04 09:00 UTC

Impact MT: No expected impact
Impact DR: No expected impact
Impact MO: No expected impact

FQDNs being moved:
* api.clxcommunications.com
* api-sms.us.clxcommunications.com
* sms.api.sinch.com
* us.sms.api.sinch.com
* us1.sms.api.sinch.com
* geo.sms.api.sinch.com


Additional IP Addresses to be added:
• Clients connecting to Sinch: 13.248.202.0, 76.223.66.78
• Clients accepting DR's or MO's from Sinch: No Change Needed.

Please add the additional IP Addresses to the whitelisting (or any IP rules) on your outbound message flows that may prevent your platform from sending messages to Sinch.

Please ignore the maintenance if your application/organization uses FQDN's api.clxcommunications.com or the other listed FQDNs and do not use our IP's in your API configurations, IP whitelisting or firewall rules for your outbound traffic to our platform.

If you reach our API platform via an IPSec VPN tunnel, this change will not impact you.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period.

If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Please contact support@sinch.com should you require further information or assistance.

Sincerely,
Sinch
(Formerly CLX Communications)
Posted on Feb 19, 15:30 UTC

We have a scheduled maintenance related to EU1 WhatsApp API

Maintenance window: 2021-03-09 08:00 UTC to 09:00 UTC.
Impact: Clients may experience delayed delivery and receipt of WhatsApp messages during the maintenance window. Messages will be queued. The API will have a maximum downtime of 10 minutes during the window.

Affected endpoint: eu1.whatsapp.api.sinch.com
Planned maintenance of this endpoint occurs on the second and last Tuesday each month, between 08:00 UTC and 09:00 UTC.
Posted on Feb 26, 07:54 UTC

We have a scheduled maintenance related to US1 WhatsApp API

Maintenance window: 2021-03-09 10:00 UTC to 11:00 UTC.
Impact: Clients may experience delayed delivery and receipt of WhatsApp messages during the maintenance window. Messages will be queued. The API will have a maximum downtime of 10 minutes during the window.

Affected endpoint: us1.whatsapp.api.sinch.com
Planned maintenance of this endpoint occurs on the second and last Tuesday each month, between 10:00 UTC and 11:00 UTC.
Posted on Feb 26, 07:55 UTC

Dear Customers,

We are writing to inform you that our US Short Code partner for a subset of US regional operators will be conducting a maintenance on their platform at the times specified below.

Start Time: 2021-03-09 10:00 UTC
End Time: 2021-03-09 12:00 UTC

Impact MT: Clients may experience delayed/rejected/failed Short Code MT traffic towards the US regional operators below
Impact MO: Clients may experience delayed/rejected/failed Short Code MO traffic from the US regional operators below

1st Point Comm
Aerialink USS
Altice
ATNI
Bandwidth
Brightlink Communication
Cellular-US
Digital Communications
DTC
Appalachian Wireless
Enflick Inc
EpicTouch
Immix Wireless
Indigo Wireless
Inteliquent
Iowa Wireless Services
Layered Communications
Leaco
Mobi PCS
Mobile Nation
Mosaic Telecom
MTA Communications
Panhandle
Peoples Wireless
Pine Cellular
Pinger Inc
Pioneer
Plivo
PTCI
RingCentral
Sagebrush
ShelComm Inc
SI Wireless
Smith Bagley
Sprocket Wireless
Telnyx
TextMe
Triangle Communication
Flextalk
United Wireless
Viya-US

On behalf of our US Short Code partner for a subset of US regional operators, we appreciate your patience and apologize for any inconvenience during this maintenance period.

If for any reason the maintenance is extended or canceled we will advise you accordingly.

Please contact support@sinch.com should you require further information or assistance.
Posted on Feb 25, 09:20 UTC

We have a scheduled maintenance related to EU1 WhatsApp API

Maintenance window: 2021-03-30 08:00 UTC to 09:00 UTC.
Impact: Clients may experience delayed delivery and receipt of WhatsApp messages during the maintenance window. Messages will be queued. The API will have a maximum downtime of 10 minutes during the window.

Affected endpoint: eu1.whatsapp.api.sinch.com
Planned maintenance of this endpoint occurs on the second and last Tuesday each month, between 08:00 UTC and 09:00 UTC.
Posted on Feb 26, 07:56 UTC

We have a scheduled maintenance related to US1 WhatsApp API

Maintenance window: 2021-03-30 10:00 UTC to 11:00 UTC.
Impact: Clients may experience delayed delivery and receipt of WhatsApp messages during the maintenance window. Messages will be queued. The API will have a maximum downtime of 10 minutes during the window.

Affected endpoint: us1.whatsapp.api.sinch.com
Planned maintenance of this endpoint occurs on the second and last Tuesday each month, between 10:00 UTC and 11:00 UTC.
Posted on Feb 26, 07:57 UTC

Sinch will be performing a scheduled maintenance to renew the SSL certificates for the EU WhatsApp API Gateway during the times specified below.

Type: Scheduled Maintenance
Maintenance: SSL Certificate Updates
Start Time: 2021-04-27 08:00 UTC
End Time: 2021-04-27 09:00 UTC
Impact: Clients connecting to the EU WhatsApp API Gateway hosts below will fail if the client SSL application is unable to auto-accept the updated SSL certificate chain presented or failed to preload it into the SSL trust store for a seamless SSL certificate switchover.

Download Updated SSL Certificate files using this link

* eu1.whatsapp.api.sinch.com

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Please contact support@sinch.com should you require further information or assistance.
Posted on Mar 2, 07:58 UTC

inch will be performing a scheduled maintenance to renew the SSL certificates for the US WhatsApp Gateways during the times specified below.

Type: Scheduled Maintenance
Maintenance: SSL Certificate Updates
Start Time: 2021-04-27 10:00 UTC
End Time: 2021-04-27 11:00 UTC
Impact: Clients connecting to the WhatsApp US API Gateway hosts below will fail if the client SSL application is unable to auto-accept the updated SSL certificate chain presented or failed to preload it into the SSL trust store for a seamless SSL certificate switchover.

Download Updated SSL Certificate files by using this link

us1.whatsapp.api.sinch.com
*.whatsapp.api.sinch.com

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Please contact support@sinch.com should you require further information or assistance.
Posted on Mar 2, 08:06 UTC