8 Apr
2005
8 Apr
'05
9:29 a.m.
Hi,
Just saw an article on http://www.zdnet.de/news/tkomm/0,39023151,39132110,00.htm?h (in German) where they say that AVM and Iptelorg developed some ISDN features in SIP like "callback on busy", "call waiting", "cold hold", "deflection" and "3way conference".
I was just wondering: - how the first one (callback on busy) is implemented and if it is possible to do this with the standard ser and without a b2bua - why the other features are big news since they are possible with some help of the involved UACs anyway...
Andy