SMS view needs sticky DID filter option
Within ring central app, SMSs are all grouped together regardless of how many SMS enabled phone numbers are enabled and have received texts. The SMS view needs a top drop down that allows the user to select a DID and there by view only SMSs sent to from that DID. The all together view currently does not allow this and it requires a deep level of clicks to find which DID the conversation is established with. Also having a sticky DID filter drop down avoids accidentally sending Texts from an incorrect DID.
By sticky, the DID selection should persist between app launches. Ideally a user could set a default DID filter number and always see texts filtered to that DID when they enter the text view.
Thank you.

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Steve commented
Another great idea would be a color code the user could define. They select blue for DIDx and purple for DIDy. The text view would color with a pale background the color of the associated DID per conversation.
A filter drop down could be placed just beside the search field between the search and unread filter toggle. All it needs to display after selection is the last 4 digits of the selected DID.