So after strugling a LOT to make some ISDN equipment work, I figured I better write some of it down.
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Archive for the ‘VoIP’ Category
South Africa and Asterisk (DAHDI)
Tuesday, March 9th, 2010
Is asterisk ready for a fork?
Wednesday, January 27th, 2010It is with a heavy heart that I start writing this entry. I’ve always enjoyed working with asterisk after overcoming an initial (unfounded) fear of it, in part due to the words from a relatively brilliant ex-coleage of mine from my days working at Techteam (CS dept at the University of Pretoria). It’s a mind-bending experience, to say the least, fun and requires a decent amount of intuition. However, recently I’ve been realizing that the current state of affairs is oh so very far from ideal. (more…)
Broadband … really?
Tuesday, March 10th, 2009How does one define broadband? Is it all defined around throuput? Latency? Between which endpoints? Using ADSL currently one can expect a local latency of around 30ms to anywhere within SA, and depending on whether you’ve got a SAIX (Fibre) or IS (both Fibre and Satellite) you can expect anything between 300ms and 800ms to international destinations (obviously depending on the exact geographical location and the type/distance of the peerings being used).
VoIP Load Balancing over PPPoE links
Sunday, February 15th, 2009I initially wanted to say over DSL, but then realized that that’s not quite appropriate since we’ve just actually completed the naïve approach making use of iBurst. So on my way back home … I churned some ideas that I’d like to share (And log, before I forget them). The ideas will build around the IAX/2 protocol as it’s much, much simpler, but the concepts should apply equally to SIP. Obviously the ideal is to just get a bigger pipe …
