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I’ve just bought myself a NetComm NB9WMAXX, an ADSL2+ Wireless Broadband Modem Router with VoIP gateway. I wanted to fully utilise my broadband account by making phone calls through the internet. Expensive equipment (AU$279.00) but I figured it would pay for itself when I start making big savings on my telephone bill.
I signed up for a VoIP account with Internode because I heard good things about it from a work friend. I installed my brand new modem, configured it with my VoIP account details, and at first, everything was great.
That was until I realised that the modem didn’t handle IVR or call forwards too well. IVR, Interactive voice response, is the interactive technology that allows a computer to detect voice and keypad inputs (eg. “press 1 for this, press 2 for that” OR “say yes if this is correct” etc.). This default configuration also cannot handle phone calls to a number that is diverted to another.
In both scenarios, the phone call “drops out”, ie. the call goes silent all of a sudden (can’t hear anything at all). I searched high and low for a solution online but to no avail. One particular site, however, hinted the problem. The following page http://forums.whirlpool.net.au/forum-replies-archive.cfm/532842.html suggested to “have a look at your RFC2833 Outband DTMF options. Maybe ask your Voice Service Provider what settings they support”.
So I did. NetComm NB9WMAXX modem by default sets the “RFC2833 Outband DTMF” attribute to “Auto Negotiation”. I found that this configuration is what causes the problem with IVR and forwarded calls. Unfortunately, I tinkered with every possible configuration on the modem to no avail. NetComm NB9WMAXX is just not compatible with Internode VoIP and vice versa. Don’t bother calling NetComm or Internode support either because they won’t listen to you. NetComm does not have support for Internode VoIP. Internode VoIP does not support NetComm NB9WMAXX. The hardware and service provider is just not compatible with each other.
To resolve my issue, I signed up with MyNetFone, which one of the many service providers supported by NetComm. I didn’t get the problem again and I’m one happy customer!
