newbie to Asterisk and just trying to get a load of bits together including PSTN interface using Digium Quad E1 interfaces using EuroISDN.
Question can I/how do I get access to the ISDN reason codes for call disconnect? The purpose is to be able to make routing choices based on the reason code returned from a PRI connected interface/channel. For example if the reason code indicates say "network congestion" or "no route" then I want to be able to try an alternative route by manipulating the digit string and retrying on another interface, for example to a SIP ITSP.
Here's the scenario - call originates on IP cloud from an IP Phone/IAD/ATA connected via a proxy server (SER), destination PSTN via Asterisk, First choice route is out of an ISDN PRI port on the Digium board, if this route is either congested - no channels left to dial out on or the far end network has a problem such as can't route to that destination, Then take a second, third etc choice of route to that destination say via a SIP connection to another ITSP, or another PRI Interface connected to another PSTN provider.
Any suggestions, thoughts, configuration examples and general advice welcome!
Neill............;o)
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