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Troubleshooting incoming calls when the server is behind NAT
calls incoming nat kb-troubleshooting-article server sip Updated using 4PSA automated script … Applies to VoipNow 3 and higher! This article describes what happens when your server is located behind the NAT and apparently you can’t receive any callsTroubleshooting the MWI LED remaining on even if there are no voicemail messages
kb-troubleshooting-article message waiting voicemail Updated using 4PSA automated scriptTroubleshooting charging problems
in question as well as a flow for the call. Related articles kb-troubleshooting-article charging postpaid plan prepaid limits credits costs Updated usingTroubleshooting choppy sound in MOH files played over the phone
of frequencies deleted. Be that as it may, at least it does not sound choppy over the phone. Related articles kb-troubleshooting-article moh sound audio issues jitter … Applies to VoipNow 3 and higher! This article informs you about the main aspects that have to be taken into consideration in order to avoid the music on holdTroubleshooting not receiving voicemail notifications
. Related articles kb-troubleshooting-article voicemail notifications messages email templates Updated using 4PSA automated scriptTroubleshooting fax session failures caused by incorrect negotiation of T38FaxMaxDatagram parameter
. This article will help you solve the failures caused by the T.38 parameter. Example The failures caused by the T.38 parameter can be identified in the Asterisk log … the behavior for all T.38 fax sessions regardless of the device type. Asterisk must be restarted once this change is applied. Related articles kbTroubleshooting calls and debug steps
with the debug messages logged by this application. Related articles kb-troubleshooting-article debug calls call failure kamailio asterisk sip Updated using 4PSA … or Asterisk (Dialplan or Asterisk Applications). This article helps you identify and fix the system component responsible for call failure. TroubleshootingTroubleshooting placing calls to a public phone number
is not a free codec. If you want to use it, you need to purchase a license from Digium. Related articles kb-troubleshooting-article voipnow calls call routing … to a public number for a couple of reasons. This article provides a workaround in case this happens. Ensure you set a cost If the channel has a Paid Billing