Where to add Tech Prefix

Hello community !
Please tell me where to add Tech Prefix in ASTPP for trunk ?

You may assign the localization(with configuration on termination side) to the provider account of trunk.

still not working, call failed

error code in CDR is RECOVERY_ON_TIMER_EXPIRE [102]

This probably from provider, if you can share fs logs in pastebin.freeswitch.org and pcap.