i used either mode it still give me the same error. I trying to compare Class.a2billing.php of version 1.3.1 and 1.3.2, that give me the same line of error which is 1262.
Thanks alot for replying my post fast, but still cant solve the problem.
Added after 4 minutes:
Let me make sure that we are testing the same thing.
when i said with CID, i meant that i have my number added as callerid under customers tab in admin_UI (web)
when i said manually enter account number, i meant that i removed the phone number from callerid list and enter the account number to authenticate, then enter the voucher number after the prompt, it said it added, but looking at the debug screen, the username or the accountcode is blank, which mean that it didnt know which account that voucher was for.
Actually, my version is 1.3.0