There are two types of caller ID, number only and name+number. Number only caller ID is called Single Data Message Format (SDMF), which provides the caller's telephone number, the date and time of the call. Name+number caller ID is called Multiple Data Message Format (MDMF), which in addition to the information provided by SDMF format, can also provide the directory listed name for the particular number.
It appears that for incoming calls, our ITSP will only deliver SDMF to us. Do some other providers supply MDMF? Since calls often come from our Customers' non-primary phone numbers (which are not in our phone directory), the SDMF caller ID is proving to be of limited usefulness to any of us that can't memorize more than 20 phone numbers. Not enough of a problem to warrant changing ITSPs, but if we end up changing for other reasons it might be something we would look for in our next ITSP. Mike Burden Lynk Systems, Inc e-mail: m...@lynk.com Phone: 616-532-4985 From: sipx-users-boun...@list.sipfoundry.org [mailto:sipx-users-boun...@list.sipfoundry.org] On Behalf Of Tony Graziano Sent: Wednesday, March 10, 2010 2:21 PM To: Jeff Gilmore Cc: sipx-users@list.sipfoundry.org users Subject: Re: [sipx-users] Outgoing caller ID name & number? On Wed, Mar 10, 2010 at 2:15 PM, Jeff Gilmore <j...@thegilmores.net> wrote: Is it possible to get Sipx to send both the caller's phone number as well as a 15 character string of user name (or whatever) when placing outbound calls to an ISP? Or is there only the 15 character string (which could contain either text or a phone number)? >From Wikipedia: There are two types of caller ID, number only and name+number. Number only caller ID is called Single Data Message Format (SDMF), which provides the caller's telephone number, the date and time of the call. Name+number caller ID is called Multiple Data Message Format (MDMF), which in addition to the information provided by SDMF format, can also provide the directory listed name for the particular number. To say it another way, is there a way that Sipx can send the phone number (DID) in a way that it will be recognized as such by the ITSP and then transmitted properly across the PSTN such that normal land/cell phones will recognize it as the callback number? I realize I will likely have to work this out with my ITSP, but can you tell me what Sipx can do from its side? Thanks, Jeff _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/ You would need your ITSP to do this or become responsible for your own 911 database, which is complex and problematic if you have it wrong and get fined. Sipx can send its own CNAM and subscriber line info when calling another system directly via sip, and bypassing the telco or an itsp altogther, but that's really it. Search the archives for 911 CNAM and you'll find a lot of information on it.
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