[Asterisk-biz] Affordable GSM to SIP gateways?

[Leandro Morgado]

Mark Elkins wrote:

>On Mon, 2005-06-20 at 09:14 -0400, Chris Mason (Lists) wrote:
>  
>
>>Forgive my ignorance but I don't understand how this works. Is the
>>presumption that the gsm to gsm calls are free or why is this better than
>>simply dialling the phone number via pstn? 
>>I'm intrigued but clueless...
>>    
>>
>
>In South Africa - a monthly Fixed line (pstn=Telkom) to Cell phone (GSM)
>expenditure of R3000  (Three thousand rands - thats about 300 Euro) can
>be done with a "fixed" cell phone system with a monthly contract 'Talk
>500' (500 minutes of calls) costing just under R800.  (or 80 Euro)...
>
>... so "least cost" routing of cell calls can save a bundle..
>
>Also - The copper under South African streets is always fresh and new -
>because its often recycled (theft, sold to scrap merchants, sold as
>recycled copper to the wire manufacturers...).  Having an alternative
>system to "fixed wire" can be useful between the cable being pinched and
>replaced  :-)
>
>ps - I have heard that some 'fixed' mobile units do send the ClID down
>the 2-wire to the PABX (choice of encoding methods). 
>  
>
The Nokia 32 FCT sends CallerID to Asterisk. It can be configured to
receive CallerID from the GSM network using a variety of protocols (FSK,
DTMF, etc).

Leandro