[Asterisk-Users] SMS Service over SIP/IAX/h323/MCGP

Robert Hajime Lanning lanning+asterisk at monsoonwind.com
Sun May 25 04:25:29 MST 2003


Take a look at this company, they have a connection to almost every
wireless/pager vendor including message delivery/reply via voice.

http://www.mobilesys.com/

I am looking at their service for my work.

<quote who="Markku Korpi">
> The problem I have had with many SMS email gateways, is that they do not
> allow to reply back. Of course, email is a superior service over SMS, but
> does not really replace it ( - at least not until all the mobile phones
> have
> email access on them...).
>
> It would be nice if the SMS service would be available not only on
> GSM/GPRS/etc., but also on any telephone number in the world  - or at
> least
> on every * number... ;-).
> (...including confirmation that the message was delivered).
>
> Since SMS is an application it should work over different signaling
> protocols in the same way. Then the user should not need to know what kind
> of device the other end is using in order to send an SMS and to receive
> SMSs
> back.
>
> Therefore, in my opinion, if an SMS type of service is to be implemented
> over SIP/IAX/h323/MCGP it should follow the appropriate GSM procedures
> quite
> closely, in order to make the interworking as easy as possible.
>
> There is a fresh draft of SMS for H.323.
> You can find it under http://standard.pictel.com/ftp/avc-site/0305_Gen/
> with
> name  H.450.sms_Draft_8May2003.zip
> As any of the H.450 features, it is very straightforward to implement...
> ;-)
>
> True, the above specification happens to use the ASN.1 coding (since it is
> for H.323), but it would be a simple change to carry the same procedures
> (including confirmations, etc.) over other types of messages and
> information
> elements/presentations, e.g. over IAX or SIP.
>
> The MGCP (or Megaco/H.248) implementation would not need SMS specific
> implementation, I think, because the * would terminate the SMS procedures
> and use the MGCP display/key/softkey primitives to implement a user
> interface on an MGCP compliant phone.
>
> --Markku
>
>
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com]On Behalf Of Gary
> Sent: Saturday, May 24, 2003 7:21 PM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] advantages of a sip phone over Wildcard
> TDM400P solution
>
>
> On Sat, 24 May 2003 10:13:31 -0700 (PDT), Brett Schwarz wrote:
>
>>
>>--- Andy Powell <andy at beagles-den.demon.co.uk> wrote:
>>>
>>> I'm not sure if SMS is used in the US (please
>>> correct me if I'm wrong)..
>>
>>Yes, for the last several years...
>>
>>> however, since SIP does support messaging it would
>>> be nice to see
>>> that added.
>>>
>>> Andy
>>>
>>> On 25/05/2003 at 02:26 Gary wrote:
>>>
>>> >just glancing over that panasonic doc made me start
>>> thinking, that text
>>> >messaging (SMS) with asterisk would be
>>> interesting....
>>> >
>>> >now for IAX/SIP/h323/MCGP is there anything in the
>>> specs about SMS
>>> >(Short Message Service) which Asterisk could
>>> implement ?
>>
>>
>>Are you talking about connecting to the mobile SMS
>>systems, or are you talking about having a SMS type
>>system for Asterisk?
>>
>>For the former, the easiest way to do this is to just
>>connect via an email hub. Most operators have
>>email-SMS gateways, where you can send email to
>>mobiles, which gets converted to SMS messages.
>>
>>For the latter, I believe Asterisk might have some
>>type of facility already. In phonecore, there is a
>>send text function, which would lead me to believe
>>that this was some sort of messaging
>>mechanism...although I have not tried it, so I can't
>>say for sure.
>>
>>    --brett
>
> Actually thats whats prompted the thought, never tried it, never even
> investigated it, but if it was to work with asterisk via an email
> system and a combination of SIP/IAX/h323/MCGP clients support messaging
> it would be a rather unique item, mind you it could also be an abused
> item, AND email it probably a better alternative anyway (when you think
> about it),
> .
>
>
>
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