Elementary question – accessing feature codes fromcell phone

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From: href=”mailto:asterisk-users-bounces@lists.digium.com”>asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of John Regal
Sent: Friday, November 05, 2010 10:11 AM
To: href=”mailto:asterisk-users@lists.digium.com”>asterisk-users@lists.digium.com
Subject: [asterisk-users] Elementary question – accessing feature codes
fromcell phone

Hi, please forgive me for this (hopefully) simple question. I cannot seem to
find an answer or solution while searching around.

I want to be able to call in to my server using my cell phone and be able to
set call forwarding for my extension and enter a phone number and also be
able to call in to that extension and disable the call forwarding. I see I
can do this through the ARI web interface but wish to do this with my cell
phone. Currently, it seems I can only get into my voicemail and attempting
to run feature codes like *72 don’t get recognized.

I currently have a DID assigned to my extension if this helps. I am not sure
if it is required.

Thanks much.


Hope this answer is more helpful than harmful, but in my experience and
reading, feature codes and cell phones don’t play well together. DTMF
processing is usually way less than 100% reliable in this setup. Your best
bet is probably to replicate the feature function you want into an extension
(1234 instead of *72) and dialing that from your cell or using the web
interface on your cell to do the ARI function.

One thought on - Elementary question – accessing feature codes fromcell phone

  • DTMF sent from cell phones are usually not well recognized at the asterisk
    end. The main reason for this is that cell phones transmit out-of-band DTMF,
    which by the time reaches an asterisk server traveling through cell towers,
    their equipment, various VoIP carriers etc. is usually drifted away from its
    acceptable frequency threshhold. Or if a carrier is converting it into
    inband, it might not be right at this carrier’s end, meaningful it’ll have
    no tone at all.

    Receiving out-of-band DTMF over physical lines like T1s is usually much more
    reliable than SIP, because the expensive equipment at big telcos is better
    at fixing up bad tones and send you the correct tones.

    Zeeshan A Zakaria