[CheckList] Ring back tone issue in p-series pbx
This webform only provides suggested checklists for ring back tone issue in p-series pbx, if issue persists after all checkpoints have been verified, please raise ticket or send mail to helpdesk@yeastar.com, any comments in this survey may be ignored.
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If outbound call or particular outbound call through sip trunk and there is no ringback tone on caller side, try to enable Inband Progress in sip settings - advanced - other options.
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If outbound call or particular outbound call through sip trunk and there is no ringback tone on caller side, try to enable 'Ignore 183 Message without SDP' in sip trunk - advanced -voip settings.
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If inbound call or particular inbound call from sip trunk and there is no ringback tone on caller side, please try to enable Inband Progress in sip trunk - advanced -voip settings.
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Is issue fixed after above checklists?
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