Thanks to https://drvoip.com/support/knowledgebase.php?article=77 These are commands listed here for my own reference so I can find it easily. Bolded are the ones I used and found useful. SIP debug ccsip calls debug ccsip all debug voice ccapi inout debug voip ccapi inout – (great for dialpeer selection, ani, dest #, dest pattern) debug voice dialpeer … تابع قراءة Cisco VoIP Troubleshooting