11/16/2023 14:55 ET: Alarm.com is investigating an issue where subscribers using a Verizon Wireless phone may experience delayed or missed delivery of text message (SMS or MMS) notifications.
11/16/2023 15:45 ET: In order to mitigate delayed and missed deliveries for Verizon Wireless customers, Alarm.com has disabled video clip and thumbnail attachment for Verizon Wireless text message addresses/phone numbers. We will update this post with any further changes.