I would like to know the usage of:
Regional -> Call Progress Tones -> Busy Tone:
PSTN Line -> PSTN Disconnect Detection -> Disconnect Tone:
are they the same and which one will affect the problem as explained below?
The reason I ask this question is that my SPA3102 don't have problem on disconnect calls form PSTN to SPA3102 - the PSTN caller hangup SPA3012 will also on hook and ready to accept next call.
I have a DP to call forward calls after "PSTN Answer Delay:20" to my VSP's voice mailbox if no one pickup the analog phone. After PSTN user leave the voice message and hangup, SPA3102 is not able to tear down the call. I can hear the continue recording of Busy Tone in the voice message for a few minutes, immediate dail up the PSTN No. will encounter busy (i.e. SPA3102 is still off hook). Would this be a correctable issue in my SPA3102 or I have to request the VSP side to look into the problems?