Android phone as SIP Server / SIM Gateway
Budget: $1,500 – $3,000 USD
I am trying to explore the possibilities of installing a SIP server or SIP GSM Gateway into an android phone.
Using a remote sip client, the sip server would be able to authenticate remote sip client using username and password. Once authenticated, when sip client request a call out. Sip server will trigger a call out using the android’s SIM card.
Or
Android SIP server will report itself to a VoIP switch like asterisk. SIP client will also be connected to asterisk.
When there is a request to call out from SIP client via asterisk. Asterisk will treat sip server as a trunk and thus making an outbound call using sip server’s SIM card.
Using a remote sip client, the sip server would be able to authenticate remote sip client using username and password. Once authenticated, when sip client request a call out. Sip server will trigger a call out using the android’s SIM card.
Or
Android SIP server will report itself to a VoIP switch like asterisk. SIP client will also be connected to asterisk.
When there is a request to call out from SIP client via asterisk. Asterisk will treat sip server as a trunk and thus making an outbound call using sip server’s SIM card.