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US Cellular Multi-segment messages

October 6, 2021 Messaging API

Short Code (SC) SMS messages destined to US Cellular are now split out into multiple single-segment messages.

​​Multi-segmented SC SMS messages to US Cellular are now being split up into multiple single-segment messages, resulting in customers receiving multiple Delivery Receipts (DLR).

Prior to this fix, multi-segment messages to US Cellular were failing due to a limitation in their handling User Data Headers (UDH). This fix means that multiple single-segment messages will have their own DLR.

Customers will receive multiple DLRs unless suppression is implemented.

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