General

Your partner’s invoice and your CDRs disagree

The supplier PDF is 570 EUR above Last Calls for the same month. Finance wants to pay or to withhold. Pair their call file...
Mindaugas Kezys
4 min read

How VoIP providers get drained in 30 minutes

You open Last Calls on a Monday and a prepaid balance is gone. Or a postpaid account with unlimited credit spent half an hour...
Mindaugas Kezys
5 min read

Introducing CDR export files on the server

A template export can stay on the server. You download it from CDR export files, and the email carries a link. The archive is...
Mindaugas Kezys
6 min read

Why a dialer gets 503s when channels are still…

You start a predictive campaign. The trunk still shows free channels. A second later the dialer log fills with SIP 503 and congestion, and...
Mindaugas Kezys
5 min read

Origin-based rating: two prices, one prefix

Suppliers list prefix 356 twice on a Malta deck. You pay one price when the caller is inside the European Economic Area. You pay...
Mindaugas Kezys
4 min read

Your minutes and theirs will not match

Same call, different billed seconds. A billing increment mismatch (60/60 vs 1/1) is the usual cause. Compare one CDR before the monthly dispute.
Mindaugas Kezys
4 min read

Calls per second vs concurrent calls

Calls per second and concurrent calls are separate trunk limits. A dialer can hit the setup rate while the channel count is still low.
Mindaugas Kezys
5 min read

2026 September Development Update

MOR adds a one-call anonymous dial prefix, voicemail greeting upload, and CDR exports you can download from the server. The API can edit a...
Mindaugas Kezys
4 min read

Introducing DID billing for MOR Resellers

You set the wholesale Reseller Rate. Your Reseller sets the retail Owner Rate. MOR bills both on the same answered inbound call, so inbound...
Mindaugas Kezys
6 min read