[asterisk-ss7] GSM handsets-Voicemail MWI no workie

Dale McWhorter dmcwhorter at clearwire.net
Wed Dec 1 14:15:03 CST 2010

Thanks all for the feedback. It never occurred to me to utilize a SMDI port
or Amish's software solution. Both good idea's I plan to pursue. Thanks


Dale McWhorter

Choice Wireless



From: asterisk-ss7-bounces at lists.digium.com
[mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Amish
Sent: Wednesday, December 01, 2010 1:37 PM
To: asterisk-ss7 at lists.digium.com
Subject: Re: [asterisk-ss7] GSM handsets-Voicemail MWI no workie


Dear Dale,

The MWI is sent to your GSM/UMTS phone as an SMS. Your phone recognises that
this is a MWI SMS and sets/clears the icon accordingly.

To implement this function download a copy of kannel. Connect kannel to your
SMSC via SMPP. When a voicemail is deposited, send an SMS via kannel with
the MWI set to the users phone. Your can send another SMS later to clear the
MWI icon when the user accesses their voicemail. For more info search for
"mwi" in the kannel 1.5.0 userguide.


On 12/01/2010 06:22 PM, Dale McWhorter wrote: 

First Posting

Hello Friends & Neighbors:

  I work for a small GSM carrier and recently launched an Asterisk
( configuration (CENTOS5.5) utilizing SS7 (Digium-TE220) to a
Nortel XAC wireless switch. Asterisk voice mail was also implemented but
soon realized the MWI feature was not functional to GSM handsets, everything
else works great. VM-MWI works on soft phones just fine. Has anybody
successfully made this work to wireless handasets? We're happy with the
performance of our system, maybe we're asking to much. On a working platform
a GSM MAP message transaction via E.164 (GMSC to SMSC) is utilized.


Any Feedback appreciated



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