Important Note: All messaging traffic from SkySwitch to its upstream providers is considered A2P and must comply with A2P/10DLC carrier policies, including the requirement to register a Messaging Brand and Campaign.All SMS delivery messaging applications such as ReachUC, vBroadcast, and SMS Bot Responder include the requirement to become compliant before they are allowed to send messages. Please visit our Messaging Reseller Guide to learn how to become compliant.This document discusses the steps on how to Enable/Disable the SMS and/or MMS for a DID. If desired, a number can have SMS enabled without having MMS enabled. This process is available in the Manage Inventory section of the Phone Numbers tab from your Reseller Dashmanager.SMS for BYOT numbers is supported on a Best Effort Basis.If we do not control the voice parameter of the TN, it can be very difficult to change the NNID to our messaging provider's gateway.Please contact Ports@SkySwitch.com for assistance if you have a BYOT TN requiring SMS.If Inteliquent does not own the voice portion of a number, an SMS LOA is required to update the SMS/MMS records of the number in the OSR (Override Services Registry). If another carrier activates the SMS of a BYOT number that is SMS/MMS enabled in Skyswitch, the SMS/MMS will be disconnected in INQT and will move to the new carrier. This is an industry-wide standard, and there is no method to prevent a carrier from overriding the NNID (Net Number ID). In this instance, we must provide Inteliquent with a new SMS LOA in order to retrieve the SMS/MMS.An SMS LOA is necessary each time SMS/MMS is enabled for BYOT numbers, regardless of whether the SMS port out was invalid or SMS/MMS was momentarily disabled.Steps for Enabling SMS and/or MMSIn your Phone Numbers portal, open the Manage Inventory section and search for the DID you want to set up. On the right-hand side, click on the SMS icon found in the Actions column.Toggle the switches under SMS and/or MMS to enable the service for the DID.Please note that it may take 20 minutes up to an hour for the SMS/MMS to fully activate. If SMS is still not enabled after the said time frame, please open a ticket with Support. There are cases that the carrier needs to manually enable SMS/MMS for a DID.After enabling SMS an Eye icon will appear under Code. If you click on this you will see an Access Code which is used for activating the SMS service for the DID when the DID's PBX assignment is that of another user’s. For more information, visit the article: How to Enable Business SMS for a Phone Number on the ReachUC site.After Enabling you can now proceed to route the SMS which will appear under the Assigned To column. To know more about how and the various options for routing the SMS, read our article on SMS Routing Configuration and Options, which also discusses the Send Copies To section.Note: When changing the SMS/MMS settings, you may sometimes find helpful information within the "Notes" column. Notes can be added or edited in the Voice Route popup dialog or within the PBX Inventory page via the pencil icon to the far right of the number selected.Steps for Disabling the SMS and/or MMSNote: If you wish to Disable SMS for multiple numbers, please visit our Phone Number Tools article to learn how to use the Bulk SMS Disable Tool.  If needed, you can delete configured routing settings by clicking on the Trashcan icon beside each entry.Toggle the switch under SMS and/or MMS  to disable the service for the DID.