Grandstream GCC-UC-Extra-50 Ext/Users
Frequently Asked Questions
Confirm you entered the correct GCC serial number and MAC address of your Grandstream UCM. These must match the unit exactly, and the license is tied to that specific hardware. If everything looks right, power cycle the UCM and retry the activation through the admin panel.
It is designed for the GCC-UC-Extra-50 system, which typically refers to a specific UCM series or firmware revision. Check your UCM model and firmware version against Grandstream’s compatibility list before purchasing – the description does not guarantee universal support across all UCM models.
After activation, log into the UCM web interface. Go to Extension Management and you should see the user count increased. You can then manually add new SIP extensions, assign them to physical phones or softphones, and configure call routing. No hardware change is needed.
First verify that the new extensions are created and enabled in the UCM. Then check that the phones are pointing to the correct SIP server IP and using the right credentials. A common issue is a firewall or NAT blocking SIP traffic – ensure your network allows UDP/TCP on ports 5060 and 5061 for SIP registration.
No, this license is tied to a single UCM via its serial number and MAC address. It cannot be split or shared. If you have multiple sites, you would need a separate upgrade for each controller.
The product is marked as Non-Cancellable and Non-Returnable, so refunds are not available. Contact the reseller to confirm policy, but generally all sales are final. Double-check your exact UCM model and current user count before any purchase.
This might be a coincidence or a provisioning conflict. Reboot the UCM to refresh the extension table. If the old extensions were using non-standard ports or custom templates, ensure the upgrade didn’t reset those settings. Verify in the logs whether the extensions are failing to register or if they were accidentally deleted during the upgrade process.
The license is intended for on-premise UCM operation. If you are using Grandstream’s cloud management platform (UCM Cloud or similar), this on-premise upgrade may not apply. Review your deployment architecture – if the UCM is acting as a local gateway for a cloud PBX, the user count is usually managed on the cloud side, not via this license.
A pending activation usually indicates the UCM cannot reach Grandstream’s licensing server. Verify the UCM has internet access and that no firewall is blocking port 443 (HTTPS). You can also try manually checking for updates or triggering a license sync from the UCM’s system settings.
The license is permanently tied to the original UCM hardware and cannot be transferred. If you sell the unit, the new owner inherits the expanded user capacity. There is no deactivation step; the license follows the serial number.
Accessories
Grandstream GCC-UC-Extra-50 Ext/Users
• Grandstream GCC-UC-Extra-50 Ext/Users Upgrade – Upgrade for additional 50 users/extensions (up to 200 total users/exts) • Key Features: • Compatible with the existing GCC-UC-Extra-50 system • Upgrades the user base by adding an additional 50 users or extensions • Supports up to a total of 200 users or extensions • Important Notes: • This upgrade plan is Non-Cancellable and Non-Returnable • A valid GCC serial number and MAC Address must be provided
About This Product
The Grandstream GCC-UC-Extra-50 is a software license that adds capacity for 50 additional users or extensions to a compatible Grandstream UCM IP PBX system. It’s meant for growing businesses that have already invested in a Grandstream phone system and need to scale up without replacing hardware. Typical environments include small-to-medium offices in the GTA where staff numbers are increasing gradually, or seasonal businesses that expand temporarily. Pairing this license with a Grandstream UCM allows the system to support up to 200 total users, so it fits well alongside SIP desk phones, softphones, and analog adapters that are already deployed.
A key practical tradeoff is that this is a non-cancellable and non-returnable digital entitlement, not a physical product. You must provide a valid GCC serial number and MAC address to activate it, meaning the license is tied to a specific UCM unit. That’s fine for a single-site deployment, but it won’t transfer easily if you later replace the controller. For a small business adding exactly 50 new staff, this is a cost-effective boost; but if you’re only adding a handful of users, buying a smaller license or per-user option would be more appropriate. It becomes overkill if your total user count already exceeds 200 or if you’re planning to migrate to a different PBX platform soon.
For Canadian businesses, compatibility with local SIP trunking providers is generally straightforward since the Grandstream UCM supports standard SIP. Just confirm that your current firmware and carrier settings can handle the increased registration load. If you’re in the GTA and using a hosted PBX from a local provider, double-check that you’re not mixing on-premise licensing with a cloud service – this license is strictly for the on-premise Grandstream UCM series.
A key practical tradeoff is that this is a non-cancellable and non-returnable digital entitlement, not a physical product. You must provide a valid GCC serial number and MAC address to activate it, meaning the license is tied to a specific UCM unit. That’s fine for a single-site deployment, but it won’t transfer easily if you later replace the controller. For a small business adding exactly 50 new staff, this is a cost-effective boost; but if you’re only adding a handful of users, buying a smaller license or per-user option would be more appropriate. It becomes overkill if your total user count already exceeds 200 or if you’re planning to migrate to a different PBX platform soon.
For Canadian businesses, compatibility with local SIP trunking providers is generally straightforward since the Grandstream UCM supports standard SIP. Just confirm that your current firmware and carrier settings can handle the increased registration load. If you’re in the GTA and using a hosted PBX from a local provider, double-check that you’re not mixing on-premise licensing with a cloud service – this license is strictly for the on-premise Grandstream UCM series.
Services We Provide
- Professional Installation & Configuration
- Ongoing Maintenance & Support
- Troubleshooting & Repairs
- System Upgrades & Updates
