[asterisk-users] Asterisk compatibility with SMS services

Sebastian Nielsen sebastian at sebbe.eu
Tue Nov 29 11:01:19 CST 2016

Im using SMS successfully over VoIP. No problems at all. You however need to use a good codec.


However, I don’t use the MessageSend application, instead I use the raw SMS() application.

This works by the SMS centre calling my fixed landline from a specific number, I detect the callerid, initiate a SMS reception and then the SMS is in the spool files.

If I want to send a outgoing SMS, I push a SMS file in the spool folder, then initate a call to the SMS centre.


Ergo, incoming is like this (as early as possible in the dialplan):


exten => s,[any],GotoIf($[${CALLERID(num)} = 07409400000]?recvsms,s,1)

(where 07409400000 is your SMS centre number)


Then at recvsms:


exten => s,1,SMS(in-${clid},a)

exten => s,2,System(/usr/sbin/mailbot sms ${clid})

exten => s,3,Hangup()


(where /usr/sbin/mailbot is a script that reads /var/spool/asterisk/mtrx folder, and clid is a variable containing a random number)




Outgoing is like this:

Place a file named [RandomA].[RandomB] into /var/spool/asterisk/motx with the following content:

da=[number you want to send to]

ud=[text you want to send, only GSM alphabet supported, composite messages NOT supported]


Then create the following file into /var/spool/asterisk/tmp:

Channel: SIP/0740940000 at YOUROPERATOR

Callerid: "[YOURNUM]" <[YOURNUM]>

Application: SMS

Data: [RandomA]


(where 0740940000 is your SMS center)

Move the file from tmp into /var/spool/asterisk/outgoing/ and the SMS will be sent.



Från: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] För Brandon B.
Skickat: den 29 november 2016 17:25
Till: asterisk-users at lists.digium.com
Ämne: [asterisk-users] Asterisk compatibility with SMS services


Can anyone comment on using SMS in conjunction with VoIP service using one of these three VoIP providers: voip.ms, vitelity.com, flowroute.com? Are some SMS services more compatible with Asterisk (i.e. SMS over SIP works perfectly or not)? Is it best to use a different data channel for SMS messages (i.e. SMS via HTTP, SMS via XMPP) instead of Asterisk's built in SMS application MessageSend <http://www.anveo.com/faq.asp?code=sip_asterisk_sms> ? In order to develop a web application for sending and receives SMS messages for business users, are there any pitfalls in using Asterisk to handle the message exchanges?

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