[Asterisk-Users] indications issues in Singapore?

[Leo Ann Boon]

Chris Earle (CBL) wrote:

>Hi all,
>
>haven't seen many posts about asterisk in Singapore...
>Getting a server going there and was wondering if TDM400Ps will be fine in
>FCC mode, and if there are indications / cadence values that I should be
>putting on there as in other international locations.
>
>Seen an unsettling post on voip-info about Singapore issues with Call
>Polarity/Hangup Detection -- crossing my fingers I don't run into that
>problem :-)
>  
>
Analog lines here are mostly loopstart, so you need to enable busydetect 
if you're using the zaptel FXO. A better option is to use a capi ISDN 
BRI card. I used the Fritz! PCI card with chan_capi, costs around S$160. 
The original poster on voip-info wrote about using kewlstart and CPC, 
which I have never encountered over here. I guess it was in vogue during 
the good old DID analog trunk days. But nowadays, you either use plain 
analog or move to BRI/PRI if you need MSN/DDI.