Asterisk pjsip trunk intra

拠点間をAsteriskのSIPで接続します。拠点はIPアドレス固定でレジスタ無しで通信します。想定は以下の通り。

 [池袋]---------------------------[板橋]
 192.168.100.1                    192.168.100.2
 SIP Port=5070                    SIP Port=5070

池袋側

基本:AOR,Endpointとして板橋を定義します。板橋側からの接続の認証を受け入れるためにAuthを、板橋への接続のためのOutbound_authを書きます。

[itabashi]
type = aor
contact = sip:192.168.100.2:5070
qualify_frequency = 30
authenticate_qualify = no

[itabashi]
type = identify
endpoint = itabashi
match = 192.168.100.2

;外からの接続を受け入れるためのauth
[ikebukuro]
type = auth
auth_type = userpass
username = ikebukuro
password = ikepass

;板橋側に認証してもらうためのauth(endpointのoutbound_auth)
[itabashi]
type = auth
auth_type = userpass
username = itabashi
password = itapass

;板橋のendpointを定義
[itabashi]
type = endpoint
context = intra-incoming
disallow = all
allow = ulaw
rtp_symmetric = yes
force_rport = yes
rewrite_contact = yes
direct_media = no
send_pai = yes
inband_progress = yes
language = ja
auth = ikebukuro
outbound_auth = itabashi
aors = itabashi

板橋側

基本的に設定は同じです。相手をendpointとして定義しAORや認証情報を書きます。

[ikebukuro]
type = aor
contact = sip:192.168.100.1:5070
qualify_frequency = 30
authenticate_qualify = no

[ikebukuro]
type = identify
endpoint = ikebukuro
match = 192.168.100.1

[itabashi]
type = auth
auth_type = userpass
username = itabashi
password = itapass

[ikebukuro]
type = auth
auth_type = userpass
username = ikebukuro
password = ikepass

[ikebukuro]
type = endpoint
context = intra-incoming
disallow = all
allow = ulaw
rtp_symmetric = yes
force_rport = yes
rewrite_contact = yes
direct_media = no
send_pai = yes
inband_progress = yes
language = ja
auth = itabashi
outbound_auth = ikebukuro
aors = ikebukuro

ダイヤルプラン

そのまま書くだけです。endpointではcontext=intra-incomingに定義していますので着信側は

[intra-incoming]
exten => 201,1,Dial(PJSIP/201)

発信側は

exten => 02201,1,Dial(PJSIP/201@ikebukuro)

のように書くと拠点間の通話になります。