Transcript Build_a_SIP_of_Environment

Build a SIP of Environment
Speaker: Yi-Ji Jheng
Date: 2007.10.03
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Outline
 Test SIP of Environment
 Direct call
 Proxy call
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TEST SIP OF
ENVIRONMENT
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Preface
 Can to build up a Server is not point
 It’s very important to know how it
work and how I setup it for our
need and maintain it later
 Otherwise, it may change (evil tools)
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Direct call mode
SIP signal
Talk
SoftPhone A
PC
SoftPhone B
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Proxy Call mode
SIP Server
VMware
SIP signal
PC
Talk
SoftPhone A
SoftPhone B
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Requirement
 Softphones
 X_lite-v2.0
 X_lite-v3.0 do not support network
configure (direct call)
 SJphone-1.60
 SIP Server
 ser-0.9.6_src.tar.gz
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DIRECT CALL
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Environment
SIP signal
X-Lite
Listen on <ip>:50600
PC
SJPhone
Listen on <ip>:5060
Number  1000
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Setup SJPhone
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Setup X-Lite
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System Settings / SIP Proxy / Default
 Enables : Yes
 Display Name : 1000
 Username : 1000
 Authorization User :
1000
 Password : 1000
 Register : Nerver
 Direct Dial IP : Yes
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System Settings / Network
 Auto Detect IP : No
 Listen on IP : <IP>
 Listen SIP Port : 50600
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Test basic of actions
 SJPhone calls to X-Lite
 X-Lite hangs up phone
 SJPhone hangs up phone *
 X-Lite calls to SJPhone *
 X-Lite hangs up phone
 SJPhone hangs up phone
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Phenomenon and Questions
 Listen some quarrel voice
 Ethereal cannot catch packet
 Some action cannot run
 (previous slides that mark “*”)
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SJPhone Bugs
 Occur when two softphones in the
same PC
 SJPhone calls to X-Lite when SJPhone
hangs up phone
 Via part didn’t have branch
 X-Lite calls to SJPhone
 c part in SDP (c : IN IPv4 127.0.0.1)
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Try again
 Install SJphone 1.65
 SJPhone calls to X-Lite
 X-Lite hangs up phone
 SJPhone hangs up phone
 X-Lite calls to SJPhone
 X-Lite hangs up phone
 SJPhone hangs up phone
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PROXY CALL
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Enviroment
SIP Server
VMware
SIP signal
PC
Ethereal
X-Lite
Number  1000
Listen on <ip>:50600
SJPhone
Number  2000
Listen on <ip>:5060
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Install SIP Server
 Use Winscp upload SER on the Linux
 Usually put it in /usr/src






Use Pietty connect to Linux
#cd /usr/src
#tar zxvf ser-0.9.6_src.tar.gz
#make
#make modules
#make install
 Can see /ser-0.9.6/INSTALL
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Start SIP Server
 After install, you can see
 /usr/local/etc/ser/ser.cfg
 /usr/local/sbin/ser
 #ser
 Must to check
 Did SER binding right ??
 Did SER already executed ??
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Setup X-Lite
 System Settings / SIP Proxy / Default




Domain/Realm : <Server IP>
SIP Proxy : <Server IP>
Register : Always
Direct Dial IP : No
 Reboot X-Lite
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Setup SJPhone
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 Check Softphones really register on
SER
 #serctl ul show
 “serctl –h” to see more
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Setup Ethereal
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Ethereal filter command
 Only see someone
 ip.addr eq <ip>
 Protocol type
 arp、icmp、udp、tcp、rtp、sip
 Logic
 eq、and、or
 ==、&&、||
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Stop or Restart Ethereal
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Save file
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Careful
 Catch packets in Switch may have
some questions
 Switch v.s. Hub
 Can select “Capture packets in
promiscuous mode” to solve some
questions
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Call flow of actions
 REGISTER
 Call
 SJPhone(2000) calls to X-Lite(1000)
 X-Lite(1000) calls to SJPhone(2000)
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REGISTER
SIP Server
UA
REGISTER
0 Bindings
200 OK
REGISTER
1 Bindings
200 OK
Un-Register  0 bindings  expire=0 with contact
Register  1 bindings  (no)expire with contact
N bindings  N number of contacts
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Call
UAC
SIP Server
UAS
INVITE
100 Trying
INVITE
100 Trying
transaction
180 Ringing
180 Ringing
Dialog
200 OK
200 OK
RTP
BYE
BYE
transaction
200 OK
200 OK
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