Lumen help
Using Control Center, you can update the configuration of a Lumen® SIP Trunking service depending on your organization's needs. The status of the changed phone numbers momentarily shows as update until the changes are complete, when the changes take place immediately. You can also update a phone number to change its routing plan or to change its calling area. Need to update multiple phone numbers? You can also make bulk changes to phone numbers using Control Center.
To update a phone number for a SIP trunk service:
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