Asterisk+Configuration+to+Work+With+Mobile+Through+OpenBTS

Experiment ID  Asterisk Configuration to Work Work with Mobile through OpenBTS

!esponsible Engineer  Mohame" #ega$%

&urpose 'earn how to (onfigure asterisk to (onne(t MS station as SI& (lient through OpenBTS) an" (onfigure OpenBTS to (onne(t to asterisk

!esour(es !e*uire" &( with 'inux operating s%stem an" an " Asterisk installe" &( with 'inux operating s%stem an" an " OpenBTS installe" (onne(te" to +S!& (Can Use Same PC with Linux Operating System with Asterisk and OpenBTS installed) (Can Use Mre Than One OpenBTS PC)

+S!& unit Mobile with SIM

 Artifa(ts #ow to (onne(t ,One or o r More- OpenBTS to Asterisk #ow to (onne(t MS as (lient to asterisk through OpenBTS

Experiment Des(ription Step1.

To a"" a /SM han"set ,MS- to asterisk as SI& (lient through SIP.conf  file  file The name is the IMSI whi(h is a 012"igit (o"e in the SIM 3ou (an see it in the Control log ,In OpenBTS- whene4er a phone tries to register ,to

OpenBTS- !allerid  is the mobile number whi(h will be assigne" to that user ,IMSIExample.

"#$%$%%$&'%###&&  !allerid%*$%  !anrein+iten type,riend  !ntextsip-external  allwgsm hstdynami! 

Step2 .

Create a "ialplan for (lients ,MS- in extensions.conf +se ma(ros to a4oi" repeating the same "ialplan for e4er% (lient Example.

"ma!r-dialS.P  exten / s0*01ial(S.P234A56*7) exten / s0%06t(s-341.ALSTATUS70*) exten / s-CA8C9L0*0:angup exten / s-8OA8S;950*0:angup exten / s-BUS<0*0Busy(&$) exten / s-CO869ST.O80*0Cngestin(&$) exten / s-C:A8U8A=A.L0*0play>a!k(ss-nser+i!e) exten / s-CA8C9L0*0:angup

Step3.

Define a new (ontext whi(h maps between Caller I" an" his IMSI ,Be(ause when %ou make a (all) %ou "on5t "ial a "estination IMSI but %ou (all its (aller IDExample.

"sip-l!al  ? This is a simple mapping >etween extensins and .MS.s@ exten / $*$*#$$$0*0Ma!r(dialS.P0.MS.#$%$%%$&&**) exten / $*$%#&%0*0Ma!r(dialS.P0.MS.#$%$%%$$'%&%'D)

Step4.

In OpenBTS.config file un"er OpenBTS apps "ire(tor%) (hange the Asterisk I& un"er Asterisk se(tion to %our asterisk ser4er I& ,If using same ma(hine keep it 067880- an" the port use" for SI& (hannel in SI&(onf Example.

E Asterisk PBF   [email protected] *%D@$@$@*  Asterisk@Prt $#$  3stati! [email protected]  3stati! Asterisk@Prt

In the SI& I& se(tion in OpenBTS.config) if Asterisk is 067880) then the SI& I& is also 067880 Otherwise) SI& I& shoul" be the lo(al I& a""ress of the interfa(e use" to (onta(t asterisk In other wor"s) this is the I& a""ress at whi(h Asterisk will see OpenBTS Example.

[email protected] *%D@$@$@* (., Cnne!t Mre Than One Open>ts P! 5epeat Step ' Gr 9+ery P!)

Step 4: UsingMS At this point, you should be able to use Mobile and dial any extension defined in asterisk SIP Account & Dialplan (SIP.conf & extensions.conf). As you make a few test calls, be sure to watch the Asterisk command-line interface (and ensure that your verbosity is set to a value three or higher) so that you can see the messages coming from Asterisk to Set Verbosity when run the asterisk add at least three v's to activate the debug mode as follow Asterisk-vvvvvvvr