On Wed, 25 Mar 2009, Asterisk wrote:
Other than the price (nearly £150 difference), is there any particular reason not to pick an OpenVox A400-based solution for my UK Asterisk needs?
None whatsoever.I think the new digium cards are better at interrupt sharing, but if that's not an issue for you, then go for it. I've installed many OpenVox cards. Use Oslec too - works a treat.
I have only a single line (so 1x FXO) and use SIP phones exclusively on-site (no FXS needed). I need to replace my current AX-100P card, as my new Asterisk server doesn't support 5v PCI cards, which the AX-100P is... Caller ID is the only thing the AX-100P gave me hassle with; does the A400 handle it any better? Remembering that UK CLID is presented between 1st & 2nd rings, using V22.bis tones IIRC. I currently use a Pace modem (which has UK CLID capability built in) to capture CLID info...
Any thoughts much appreciated,
I think you're wrong about UK caller ID.. There is a line polarity reversal, then caller ID is transmitted, then the line rings.
You'll need a patch for Zaptel to make it work reliably - same problem with both Digium TDM400 and OpenVox A400 cards too. (ie. it's a driver issue) Look for "zaptel-ring.diff" if stuck, email me and I'll email my copy.
Gordon
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