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Wed Jun 23, 2021 13:41
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stephan: Hi Keke,
got me, thank you! I was looking at the file in vi only, it didn't occur to me to do a hex dump, and the different behavior with the Alphabet apparently was a red herring in my analysis. I can confirm that there was a trailing 0a which didn't play a role with the 8 bit charset but apparently does with UTF type messages. When I remove the trailing 0a with sed it's working as expected, so please consider this report done. I appreciate your reply and assistance!
Stephan
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Tue Jun 22, 2021 11:33
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stephan: Update: the problem appears to be in the spot where SMSTools computes the PDU representation of the message. As soon as Alphabet: UTF8 ist present, there is the excess linefeed in the PDU string, as I can check with http://www.rednaxela.net/pdu.php
(Not posting the messages here as I have tested with true phone numbers that cannot be obfuscated in the PDU but this should now be easy to reproduce.)
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Tue Jun 22, 2021 10:32
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stephan: Operating system name and version: Linux Debian 10
Version of smsd: 3.1.21
Smsd installed from: sources
Name and model of a modem / phone: SIMCOM SIM7600G
Interface: USB
Hi there,
I noticed that as soon as I send a message with Alphabet: UTF8, the SMS will have an additional newline at the end when received on the other side.
This file (------ indicates the boundary) shows the problem:
-----------------------------------------------
To: 00491709xxxxxx
Alphabet: UTF8
Flash: no
To_TOA: International
TEST
-------------------------------------------------
As soon as I remove the "Alphabet: UTF8" line, the SMS is received as expected. My goal is to make UTF work (for non-ASCII language support), and at the same time have a correct transmission for such cases.
Any help appreciated!
Stephan
/etc/smsd.conf:
devices = GSM0
outgoing = /var/spool/sms/outgoing
checked = /var/spool/sms/checked
incoming = /var/spool/sms/incoming
infofile = /var/run/smstools/smsd.working
pidfile = /var/run/smstools/smsd.pid
outgoing = /var/spool/sms/outgoing
checked = /var/spool/sms/checked
failed = /var/spool/sms/failed
incoming = /var/spool/sms/incoming
sent = /var/spool/sms/sent
stats = /var/log/smstools/smsd_stats
stats_interval = 0
stats_no_zeroes = yes
status_include_counters = no
ignore_outgoing_priority = yes
loglevel = 6
receive_before_send = no
autosplit = 3
validity = 255
decode_unicode_text = no
hangup_incoming_call = yes
date_filename = 2
ignore_exec_output = yes
eventhandler = /opt/braintower/sms-gateway/scripts/eventhandler.sh
blockafter = 3
blocktime = 3600
notifier = yes
delaytime = 0
[GSM0]
device = /dev/gsm0
device = /dev/gsm0
signal_quality_ber_ignore = yes
init = AT+CPMS="ME","ME","ME"
init2 = AT+CNMI=2,0,0,2,1
cmgl_value = 4
check_memory_method = 1
keep_open = yes
report = disabled
report_device_details = yes
check_network = yes
memory_start = 0
mode = new
incoming = yes
baudrate = 115200
regular_run_post_run = /opt/braintower/sms-gateway/scripts/smstools_regular_run.sh
regular_run_cmdfile = /var/spool/sms/regular_run.cmdfile
regular_run_interval = 60
regular_run_statfile = /var/log/smstools/smsd_stats/statfile
pin = ignore
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