Filter To Unblock
Updated 7/28/2025
Thanks for GEDER for this complete list
Non-default ports 8000 and 8001
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For ConnectUC desktop (Electron) app bypass:
Off Proxy SSL.
23625-proxy.reachuc.com
reachuc-media.s3.amazonaws.com
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*.gravatar.com
messaging-chime.*.amazonaws.com
chime.aws
99\.77\.1.*
uc-technologies.com
app.connectuc.io
reachuc.com
connectuc.io
https://connectuc-releases.s3.us-east-1.amazonaws.com/desktop-prod/latest/ConnectUC.dmg
https://connectuc-releases.s3.us-east-1.amazonaws.com/desktop-prod/latest/ConnectUC.exe
https://connectuc-releases.s3.us-east-1.amazonaws.com/desktop-prod/latest/ConnectUC.msi
reachuc-media.s3.amazonaws.com
outboundproxy.com
stackpath.bootstrapcdn.com
skytektel.com
portal.skytektel.com
skytektel-audio.s3.amazonaws.com
skytektel-audio.*.amazonaws.com/*
skytekdesk.com
referrer skytekdesk.com image
For single URLs, see below.
URL & Port Configuration
Click any Copy button to quickly copy URLs or configurations to your clipboard.
| ✓ | Action | URL / Configuration | Port | IPs | Notes |
|---|---|---|---|---|---|
| please open those IPs ---> | 99.77.128.0/18 | For Geder use: 99\.77\.1.* | |||
| please open those ports ---> | 8000,8001 | Required for SMS real-time update | |||
| uc-technologies.com | Logging in Auth | ||||
| app.connectuc.io | Calling App | ||||
| connectuc.io | 443 | Calling App | |||
| reachuc.com | 9002 | required for ConnectUC SDK | |||
| chime.aws | For Netfree, if chime.aws can’t be opened, *.ws-messaging.chime.aws Must be opened for SMS to work! | ||||
| messaging-chime.*.amazonaws.com | SMS services | ||||
| *.gravatar.com | Bypassing Gravatar lookup is necessary for Contact & SMS to work without lagging | ||||
| reachuc-media.s3.amazonaws.com | MMS Pictures | ||||
| outboundproxy.com | * * as a catch all | ||||
| stackpath.bootstrapcdn.com | PBX Portal | ||||
| skytektel.com | PBX Portal | ||||
| portal.skytektel.com | Image Filter Override | ||||
| skytektel-audio.s3.amazonaws.com | Audio Files | ||||
| skytektel-audio.*.amazonaws.com/* | Allows multimedia messages images | ||||
| skytekdesk.com | Skytek Desk Portal | ||||
| referrer skytekdesk.com image | to remove image painting for multimedia messages | ||||
| https://connectuc-releases.s3.us-east-1.amazonaws.com/desktop-prod/latest/ConnectUC.exe | ConnectUC Electron app (.exe for Windows) | ||||
| https://connectuc-releases.s3.us-east-1.amazonaws.com/desktop-prod/latest/ConnectUC.dmg | ConnectUC Electron app (.dmg for Mac) | ||||
| https://connectuc-releases.s3.us-east-1.amazonaws.com/desktop-prod/latest/ConnectUC.msi | ConnectUC Electron app (.msi Installer) |
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