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Chapter 5. Setting up a SMS Gateway
Variable Value Description
sender-prefix string
The number that the SMSC will
add in front of the sender number
of all messages sent from
Kannel. If Kannel is asked to
send a message, it will remove
this prefix from the sender
number so that the SMSC will
add it again. If the prefix was not
present, Kannel will log a
warning and will not send the
sender number. If
sender-prefix is not set, or is
set to "never", then Kannel will
not send the sender number to the
SMSC at all. If you want Kannel
to pass all sender numbers to the
SMSC unchanged, then just set
sender-prefix to the empty
string "".
CMG UCP/EMI 4.0
Kannel supports two types of connections with CMG SMS centers: direct TCP/IP connections (emi_ip
or emi2) and ISDN/modem (X.25 over D channel ISDN is called X.31) connection (emi). emi2 is a new
implementation of the EMI protocol that supports more features and should work more reliably than the
old one. It is the recommended one to use with TCP/IP connections. Sample configurations for these are:
group = smsc
smsc = emi2
#smsc = emi_ip to use the old implementation
host = 103.102.101.100
port = 600
smsc-username = foo
smsc-password = bar
keepalive = 55
our-port = 600 (optional bind in our end)
receive-port = 700 (the port in which the SMSC will contact)
idle-timeout = 30
group = smsc
smsc = emi
host = 100.102.100.102
phone = ...
device = /dev/tty0
smsc-username = foo
smsc-password = bar
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