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BSNL PJSIP Configuration

 

Below is a clean, complete PJSIP configuration in one block for your BSNL IMS SIP trunk using:

DID: +9179XXXXXXXX
Username: +9179XXXXXXXX
Password: CEWBYXXXXX
IMS Server: 10.191.25.1
Domain: gj.stbi.ims.bsnl.in

You can copy-paste directly into pjsip.conf.

Complete BSNL PJSIP Configuration

;==============================
; TRANSPORT
;==============================

[transport-udp]
type=transport
protocol=udp
bind=0.0.0.0


;==============================
; AUTHENTICATION
;==============================

[BSNL_AUTH]
type=auth
auth_type=userpass
username=+9179XXXXXXXX
password=CEWBYXXXXX


;==============================
; AOR
;==============================

[BSNL_AOR]
type=aor
contact=sip:10.191.25.1:5060
qualify_frequency=60


;==============================
; ENDPOINT
;==============================

[BSNL]
type=endpoint
transport=transport-udp
context=from-trunk
disallow=all
allow=ulaw
allow=alaw

aors=BSNL_AOR
outbound_auth=BSNL_AUTH

from_user=+9179XXXXXXXX
from_domain=gj.stbi.ims.bsnl.in

outbound_proxy=sip:10.191.25.1\;lr

direct_media=no
rtp_symmetric=yes
force_rport=yes
rewrite_contact=yes

trust_id_inbound=yes
send_rpid=no


;==============================
; IDENTIFY
;==============================

[BSNL_IDENTIFY]
type=identify
endpoint=BSNL
match=10.191.25.1


;==============================
; REGISTRATION
;==============================

[BSNL_REG]
type=registration
transport=transport-udp
outbound_auth=BSNL_AUTH
server_uri=sip:gj.stbi.ims.bsnl.in
client_uri=sip:+9179XXXXXXXX@gj.stbi.ims.bsnl.in
contact_user=+9179XXXXXXXX
outbound_proxy=sip:10.191.25.1\;lr
retry_interval=60
forbidden_retry_interval=300
expiration=3600

Reload PJSIP

After saving:

asterisk -rx "pjsip reload"

Verify

Check trunk status:

pjsip show endpoints

Check registration:

pjsip show registrations

Expected:

BSNL_REG → Registered

Incoming Dialplan

Add in extensions.conf

[from-trunk]

exten => _X.,1,NoOp(Incoming BSNL Call ${CALLERID(num)})
 same => n,Dial(PJSIP/101,30)
 same => n,Hangup()

Outgoing Dialplan

[internal]

exten => _0X.,1,NoOp(Outgoing via BSNL)
 same => n,Set(CALLERID(num)=+912876225501)
 same => n,Set(PJSIP_HEADER(add,P-Preferred-Identity)=<sip:+9179XXXXXXXX@gj.stbi.ims.bsnl.in>)
 same => n,Set(PJSIP_HEADER(add,P-Asserted-Identity)=<sip:+9179XXXXXXXX@gj.stbi.ims.bsnl.in>)
 same => n,Dial(PJSIP/${EXTEN}@BSNL,60)
 same => n,Hangup()

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