We had an old asterisk/a2billing installation up and running for a long time and we face problem with the voice ( the voice is cutting in and out ) so we did a fresh installation and this did not fix the problem ...
we notice that the problem happens only for the costumers in one country , the others are fine.
we need someone experienced in asterisk troubleshooting to check this issue.
Hi,We are Asterisk/A2billing/VoIP solution provider and have setup various server for voip calls, fax, sms. If you allow can check your system for call issue. Please check your PMB for related work detail and references. Thanks