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Paul Brun
New member
Username: Brunp

Post Number: 1
Registered: 06-2013
Posted on Thursday, June 06, 2013 - 02:57 pm:   

I am looking through the specification and see the following:

Bits 7..4 can be 1100, or 1101 (which can discard or store the message), but I am more concerned with the rest of the information for bits 3..0:

Bit 3 Description
0 Set Indication Inactive
1 Set Indication Active
Bit 2 is reserved, and set to 0
Bit 1 Bit 0 Indication Type
0 0 Voicemail Message Waiting
0 1 Fax Message Waiting
1 0 Electronic Mail Message Waiting
1 1 Other Message Waiting*

I saw one of the admins on the board specify the following:

C0 - Voicemail On
C8 - Voicemail Off
C1 - Fax On
C9 - Fax Off
C2 - Email On
C2 - Email Off

What is confusing is Bit 3?? If 0 means: Set Indication Inactive and 1 means Set Indication Active, then should we then have the opposite meaning where C0 is Voicemail Off, C8 is voicemail On, etc???

when looking at my test data, my results seem to agree with the admin, but why does it specific the opposite in the ETSI specification?

Paul
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 4530
Registered: 08-2008
Posted on Thursday, June 06, 2013 - 07:54 pm:   

Hi Paul,

I'm not sure where your reference is coming from that disagrees with the spec, but in NowSMS, we set bit 3 to turn on an indication, and clear it to turn off.

In other words, consistent with the spec:

C8 = Voicemail On
C0 = Voicemail Off

--
Des
NowSMS Support
Paul Brun
New member
Username: Brunp

Post Number: 2
Registered: 06-2013
Posted on Thursday, June 06, 2013 - 07:58 pm:   

saw it in this discussion:

http://support.nowsms.com/discus/messages/1/3360.html
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 4531
Registered: 08-2008
Posted on Thursday, June 06, 2013 - 08:10 pm:   

Hmm...

That is odd. I have to believe that Bryce was typing too quickly and typed the reverse of what he meant.

I see other posts that clearly state C8 would be to turn the voicemail indicator on, such as:

http://support.nowsms.com/discus/messages/1/24076.html

I've also checked our change logs and see no indication that we ever sent MWI messages out the reverse of what the specification indicates.

Hopefully someone didn't use that other post as authoritative on the subject and implement phone software incorrectly. I'm tempted to try and figure out how to edit that page to fix it.

--
Des
NowSMS Support
Paul Brun
New member
Username: Brunp

Post Number: 3
Registered: 06-2013
Posted on Thursday, June 06, 2013 - 08:12 pm:   

That post was dated back to 2004, but if I could have found it via a Google search, then anyone can find it. That is why I want to the ETSI document to confirm my findings.

Paul
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 4533
Registered: 08-2008
Posted on Thursday, June 06, 2013 - 08:27 pm:   

FWIW, I agree with ETSI.

I am going to ask Bryce about it and see if he wants to edit the message to fix it.


--
Des
NowSMS Support

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