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By default, the SPA-841 is configured for two(2) lines. You can upgrade your phones to four(4)
lines of service by installing a License Key via the SPA-841 Web Configuration user Interface.
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The SPA-841 Four(4) Line License Upgrade:
 | Once enabled, The SPA-841 will function as a four (4) line phone. | |
| On reset to Factory Defaults, four (4) line license key will remain active. | |
| This is a one-time payment per device. No additional fees will be charged. | |
| This purchase is non refundable and non transferable. | |
| For more information, please contact sales@sipura.com | |
| Thank you for your business! | |
