Asterisk Compatibility With SMS Services

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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
? 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?

4 thoughts on - Asterisk Compatibility With SMS Services

  • This is a multipart message in MIME format.

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    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:

    [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@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@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] För Brandon B. Skickat: den 29 november 2016 17:25
    Till: asterisk-users@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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  • That’s pretty cool, thank you for the details. You are using the builtin SMS application that exchanges SMS data over SIP / PSTN connections. I
    don’t believe I can get service like that in Canada. Does anyone use the SMS applications to send and receive SMS messages in North America? Who provides that service?

  • i’m using gammu[1] with a 3g dongle and my own chip with my preffer provider. It can send over 700 every our and receive to. I don’t know if you need asterisk and sms in the same way but with this tool you can make everything. It has python tools to.

    Best regards.

    Emiliano.

    [1] https://wammu.eu/gammu/

  • I’ve used that, with an old pre-smartphone mobile as a GSM modem. It has the usual GUI frontend and scriptable backend. But it is separate from Asterisk.

    I have also used the OpenVox G400P/E in the past, which integrates beautifully with Asterisk (incoming text messages, successfully sent outgoing messages and failed sent outgoing messages trigger extensions in the dialplan); but this card has been “no longer recommended for new designs” for some time now
    (chan_extra won’t even build against recent kernel or Asterisk versions).

    Be aware that if you send too many text messages in too short a timespan, your telco might deem that to be in excess of their “fair use policy” — although the exact dividing line between fair and unfair use seems to be a jealously-
    guarded secret. The only way to find out for sure is to cross it …..

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