<div dir="ltr">Hi,<div><br></div><div>I am using Freeswitch in an application that initiates conference calls amongst 20 users in cellular network (mobile phones in GSM network). Currently, for the VOIP-GSM gateway, we are using the service from a company called Doorvaani. </div><div><br></div><div>But, since, the cost of call estimates to be high and we cannot debug the call drops; we are thinking to buy our own PRI card. </div><div><br></div><div>I am seeking recommendation on following points:</div><div><ol><li>Which card should I buy that is most easily configurable with the Freeswitch i.e. company and type. <br></li><li>Reference on how should I start to make Freeswitch configure with the PRI card and start sending and receiving calls. For the current gateway service in use, I simply put the authentication credentials for the corresponding VOIP line offered by the company Doorvaani in the external SIP Profile. In case of PRI, what all changes are needed?</li></ol><div>Regards,</div><div>Deepika</div><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Regards<br>Deepika<br><a href="https://www.iiitd.edu.in/~deepikay/" target="_blank">https://www.iiitd.edu.in/~deepikay/</a></div>
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