[VoiceOps] SMS enabled DIDs

[Scott Berkman]

I don't believe it's that "simple".

The main issue is that SMS messages were originally hacked into the GSM
standard, not a SS7 protocol.  While SMS can be carried over SS7, most
wireless networks, at least traditionally, did not follow standard SS7 and
PSTN concepts in their implementation of SMS, so they are basically separate
systems not really connected to the PSTN.

As I understand it, most of the interconnections between different networks
that carry SMS are done through gateway providers or private peering.
Verisign was the most popular and/or well known for some time:

http://www.verisign.com/static/005168.pdf

This is also part of why it took so long to start having inter-carrier MMS.

Of course the other problem is at "layer 8", so using a well-established
gateway is the best way to ensure you have connectivity to all the players
without building your own legal team.

Nowadays, many of the SMS gateway companies offer all types of connectivity
including SS7 or SIGTRAN, SOAP, SMTP, and a bunch of proprietary protocols.

There are also some good open source projects for running your own SMSC:

http://www.kannel.org/news.shtml

	-Scott

-----Original Message-----
From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org]
On Behalf Of Paul Timmins
Sent: Tuesday, April 26, 2011 11:01 AM
To: Eric Hiller
Cc: voiceops at voiceops.org
Subject: Re: [VoiceOps] SMS enabled DIDs

On 04/26/2011 10:50 AM, Eric Hiller wrote:
> We are a CLEC and have SS7 trunks. From my limited understanding, SMS 
> rides over ISUP, so in theory we would simply have an entry in an SMS 
> DB that says all our SMS messages should be sent to a particular point 
> code correct? Do I have this at all right, and if so, how do I enter 
> this SMS DB point code information?
>    

I've been thinking this myself for some time, and there's a place to input
this information in NPAC LTI. I assume you'd also need an SMSC to receive
the SMS data, and you'd have to get all the wireless carriers to open up
your point code in all their STPs. I presume there's a way to get that
information broadcast to all of them.

-Paul
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