[SIPForum-discussion] Converting anolag to digital signaling

[dipanjan.dutta at aricent.com]

Hi Aditya,

First thing, to connect an analog phone to any device that works in 
digital domain, with signaling, you needs a POTS termination interface 
(simply called line card). Easiest way is you can buy one simple ATA 
(analog terminal adapter). E.g. Cisco ATA or D-Link SIP voice terminal 
adapter.

Connect your phone to this adapter with normer phone cable (RJ-11) other 
end, device to Asterisk server/PC would be an ethernet. the ATA shall take 
care of understanding analog events coming from the phone and converting 
them to standard SIP message and vice-cersa.

thanks,
Dipanjan





aditya kumar <adityaakumar at hotmail.com> 
Sent by: discussion-bounces at sipforum.org
05/22/2007 01:10 PM


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[SIPForum-discussion] Converting anolag to digital signaling






Hi,
 
I want to convert one existing landline(PSTN) phone to IP phone with 
Asterisk .Already lab setup is done for IP phone.As, per my limited 
knowledge MGCP/MEGACO can transalte PSTN signaling to IP N/W and also 
there are some other hardwares which are converting ananlog phone to 
digital IP phone.
 
Exactly I want the following call flow:-
 
Calling from one analog hardphone--convert signal(A/D)---->IP soft phone
------Asterisk------------->convert signal(D/A)------->analog hard phone
 
Can anybody please suggest me on how to resolve this issue.
 
Thanks in advance.
 
Adi

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