[{"date":"2022-01-20 22:43:14","source":"0525715909","destination":"960","duration":"74","dstChannel":"",},{"date":"2022-01-22 23:16:15","source":"0525715909","destination":"960","duration":"52","dstChannel":"",},{"date":"2022-01-23 22:43:14","source":"0525715909","destination":"960","duration":"74","dstChannel":"",},{"date":"2022-01-24 23:16:15","source":"0525715909","destination":"960","duration":"52","dstChannel":"12312",}]

db.collection.aggregate([{$facet:{documents:[{"$match":{"dstChannel":"","destination":"960","date":{"$gte":"2022-01-20 21:43:13","$lte":"2022-01-25 23:43:14"}}},{"$project":{"destination":1,"source":1,"date":1,"duration":1}},/** {* $count: "documents"* }*/]}},{"$addFields":{"nDocuments":{"$size":"$documents"}}}])