InvalidStateException for working device

[ashish.nijai]

I am developing JTAPI application for making call using super provider.

I am using a device to call which is in good state. I can create terminal with provider.createTerminal().

When i tried to make call using JTAPI application from that device, it gives me InvalidStateException  with device state =4

The device is in good state and can dial calls manually. It also registered as JTAPI device.

Still it shows InvalidStateException whenever I try to dial programmatically.

Help please.

[mpotluri · Accepted solution]

Ashish,

  Did you add call observer on the address or terminal before making a call? Application should add observer and call observer on the address/terminal, wait till a inService event is received and then do call features.

[ashish.nijai]

Why it is mandatory to add observer?

Any reason for it?

Please specify

[mpotluri]

Yes. Application should have call observer before calling any feature API. Adding call observer will open the signaling needed to   create the correct JTAPI call model.