sorry boss,
but if any one can help me about create a sip trunk for external call use, it will be really a great help for me.
actually i have a (grandstream ht-503) fxo-fxs device. i want to use our local analogue pstn telephone line in asterisk by using the ** fxo port** for external call in to asterisk via the IVR & want to call external by any prefix from any sip extension.
pls help me…