The document discusses programmable testing for telecom services, emphasizing the importance of both passive and active monitoring to regain control over telecommunications systems. It outlines various testing methodologies, including the use of tools like Kamailio, RTPengine, SIPp, and Baresip for executing and monitoring calls. Additionally, the document provides a sample SIP scenario for active testing and examples of API testing with Curl.

1. Programmable Testing
for Programmable Telcos
Andreas Granig <agranig@sipfront.com>

2. About me

3. Testing?
Monitoring?
● Two sides of same coin

4. But why?

5. Getting back in control!

6. 3 Steps
● Passive Monitoring
● Active Monitoring
● Ad-Hoc Testing

7. Passive Monitoring
System
under
Test
tracing
tapping
Calling
Party
Calling
Party
Passive Monitoring
Solution
capture
agent
capture
agent
tapping

8. kamailio rtpengine
kamailio rtpengine
Active Monitoring
System
under
Test
Orchestration
Aggregation
sipp baresip
chromium
headless
kamailio rtpengine
Docker
Android
Emulator

9. Remote control
● baresip offers MQTT and HTTP
● sipp offers UDP
● Appium offers Selenium Webdriver
● Kamailio/rtpengine offer MQTT
Active Monitoring

10. SIP Test Flow
Active Monitoring

11. Ad-Hoc Testing
System
under
Test
sipp
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE scenario SYSTEM "sipp.dtd">
<scenario name="basic-call">
<send>
<![CDATA[
INVITE sip:bob@example.com SIP/2.0
Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
Max-Forwards: 70
From: "Alice" <sip:alice@example.com>;tag=[call_number]
To: "Bob" <sip:bob@example.com>
Call-ID: [call_id]
CSeq: [cseq] INVITE
Contact: <sip:alice@[local_ip]:[local_port]>
User-Agent: sipp
Content-Type: application/sdp
Content-Length: [len]
v=0
o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
s=-
t=0 0
c=IN IP[media_ip_type] [media_ip]
m=audio [media_port] RTP/AVP 8
a=rtpmap:8 PCMA/8000
]]>
</send>
<recv response="100" optional="true">
</recv>
<recv response="180">
</recv>
…
</scenario>

12. SIPP Scenario Generator

13. “This is nice, BUT…”

14. API Testing
curl -X POST
“https://app.sipfront.com/api/v2/run”
-u “$SIPFRONT_USER:$SIPFRONT_TOKEN”
--data-urlencode “test.name=wait-for-call”
curl -X POST
"https://api.twilio.com/2010-04-01/Accounts/$SID/Calls.json"
-u $TWILIO_USER:$TWILIO_TOKEN
--data-urlencode "Url=http://demo.twilio.com/docs/voice.xml"
--data-urlencode "To=+19991000"
--data-urlencode "From=+19992000"

15. API Testing
curl -X POST
“https://app.sipfront.com/api/v2/run”
-u “$SIPFRONT_USER:$SIPFRONT_TOKEN”
--data-urlencode “test.name=basic-call-a-b”

16. THANK YOU