1. VoIP made simple.
Welcome to Vertical’s
SBX IP
Technical Webinar

2. Objective
To provide Vertical dealers with the necessary tools, information and experience essential to the successful deployment and implementation of the SBX IP 320
Topic
KSU Configuration for Session Initiation Protocol (SIP) Trunks.

3. Tools You Will Need Laptop Network Diagram
Ethernet Cables (Straight-through and Crossover)
Ethernet Hub
Wireshark (Free Packet Capture Software)
Being Prepared Will Save You Time

4. Requirements Static Public IP Address for the VOIB (cannot be shared)
Direct/Routed Internet Access or 1-to-1 NAT Capable Device
Certified SIP Carrier And Account Information (Certified Carrier Documentation Available On VConnect)
VOIB
SBX PCAdmin Software
Port Forwarding Is NOT Supported For VOIB
PAT Is NOT Supported For VOIB 4 4

5. Static IP Addresses are manually assigned and do not change.
IP Address Matrix
Address Class
1st Decimal Range
Network/Host ID**
Default Subnet Mask A *
N.H.H.H
or /8 B
N.N.H.H
or /16 C
N.N.N.H
or /24 D
Multicast E
Experimental
** N = Network ID H = Host ID Private IP Addresses:
Class A
Class B –
Class C –
* is reserved for loopback diagnostic functions
is a “special case” available for use as a broadcast address.
Static IP Addresses are manually assigned and do not change.
Dynamic IP Addresses are assigned via DHCP and may change from day to day. 5 5

6. KSU Direct Internet Access Diagram Data Network Internet
Hub or
Switch
Router
VOIB With A Static Public IP
Data Network
Internet
Carrier

7. KSU 1-to-1 NAT Capable Device Internet Access Diagram Internet
Hub or
Switch
Router
VOIB With A Static Private IP
Data Network
Internet
Carrier
1-to-1 NAT Statement
Mapping Static Public IP
To Private IP Assigned to VOIB
Do Not Confuse This With
Port Forwarding/Port Triggering
*Additional Programming on VOIB
1-to-1 NAT Capable

8. KSU Common Network Diagram Using Multiple Public IP’s Internet
Hub or
Switch
Router
VOIB With A Static Public IP
Data Network
Internet
Carrier
Routes to Multiple Public IP Addresses
Inside the Network

9. What Is SIP
The Session Initiation Protocol (SIP) is a signaling protocol used for establishing sessions in an IP network. A session could be a simple two-way telephone call or it could be a collaborative multi-media conference session. SIP is developed purely as a mechanism to establish sessions, it does not know about the details of a session, it just initiates, terminates and modifies sessions.
Over the last couple of years, the Voice over IP community has adopted SIP as its protocol of choice for signaling. SIP is an RFC standard (RFC 3261) from the Internet Engineering Task Force (IETF), the body responsible for administering and developing the mechanisms that comprise the Internet. SIP is still evolving and being extended as technology matures and SIP products are socialized in the marketplace.

10. SIP Messages
SIP Is A Text-based Protocol. The Client Makes Requests and the Server Returns
Answers to Client Requests Using Two Types of Messages. Requests (Methods)
And Answers (State Codes).
1xx Provisional/Informational Response – Request Received and Processing
*A Server sends a 1xx response if it expects to take more than 200 ms to obtain a final response
2xx Success – The Action Was Successfully Received Understood Accepted
3xx Redirection – Further Action Needs To Be Taken To Complete Request
4xx Method/Client Error
5xx Server Failure/Error
6xx Global Failure/Error

11. SIP Methods
The Initial Line/Request Line Is Most Important Part of SIP Request. It Contains
the Method Name, Request URI and SIP Protocol Version. There are Six Basic
Methods (RFC 254) for Client Requests
INVITE: Invite a User or a Service to a New Session/Modify Session
ACK: Confirm Session Establishment
OPTION: Request Information About the Capabilities of a Server
BYE: End of a Session
CANCEL: Cancel a Pending Request
REGISTER: Register the User Agent

12. SIP Call Setup
We go off-hook and dial a number. Authentication/registration with the Carrier
Occurs and is accepted.
Call is processed by carrier and returns ring to us.
Call is answered and connected.
Conversation takes place.
We end the call and it is disconnected and
the line cleared.

13. SIP Error Messages
4xx Method Failures/Client Error - Generally Authentication Failure
401 Unauthorized - Authentication Failure
402 Payment Required - Call Rejected
403 Forbidden - Authentication Failure
5xx Server Failure/Server Errors - Server Failed to fulfill a Valid Request
503 Service Unavailable - SIP Server May Be Down
504 Gateway Timeout - SIP Server May Be Down
6xx Global Failure/Global Errors – Request Cannot Be Fulfilled at Any Server
600 Busy Everywhere - User Busy
606 Does Not Exist Anywhere - Unallocated Number
*Many 4xx Errors Report On The Station Display

14. SIP Call Trace Capture – Failed Call
[SIP-CMD] INVITE sip:
;user=phone
From:<sip:
>
To:<sip:
;user=phone>
Contact:sip:
:5060
C>10 04, D5 B5 09 1D 3C A E E E E 0A
“”Truncated””
[SIP-EVT] SIP_CALLFAIL_RESP_MSG
IE_SIP_RESPONSE_CODE:403
IE_SIP_CONTACT:sip: :5060

15. DEMONSTRATION www.sbxip320.com 15 15
The next section will describe the system components in detail. 15 15

16. Contact Information
Training Available
*Vertical University (Web Based)
Software and Documents Available
*VConnect
Technical Support
**Online
**Phone
1-877-Vertical
* Requires Login
** Requires Tech Number

17. Thank You Questions & Answers17 17