Retrieve all conversations across voice, SMS, email, and live chat
open - Active conversationspending - Awaiting responseresolved - Completed conversationsall - All conversations (default)voice - Phone callssms - Text messagesemail - Email threadslive_chat - Live chat sessionsurgent - Requires immediate attentionhigh - Important conversationsnormal - Standard prioritylow - Non-urgent itemslast_activity_desc - Most recent activity firstlast_activity_asc - Oldest activity firstcreated_desc - Newest conversations firstcreated_asc - Oldest conversations firstpriority_desc - Highest priority first