Operating system name and version: Entware
Version of smsd: 3.1.21-2
Smsd installed from: http://bin.entware.net/mipselsf-k3.4/smstools3_3.1.21-2_mipsel-3.4.ipk
Name and model of a modem / phone: siemens mc35i
Interface: prolific usb-to-serial

Hi, sms in text mode work good, cannot send PDU!

modem_settings:

text_is_pdu_key = pdu

SMS file:

To: pdu
Text_is_pdu: true

0011000C917325891545690000FF07F4F29C9E769F01


The file gets to the folder "failed":

To: pdu
Text_is_pdu: true
Fail_reason: No destination
Failed: 2020-02-10 22:20:55

0011000C917325891545690000FF07F4F29C9E769F01

what am I doing wrong?

Documentation appears to be inaccurate. It's said that text_is_pdu_key = string, but actually it's a string of numbers and also it should not begin with two zeroes.

Try with a key: 123123 or something like that.

Thank you! It works now!