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

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VoIP made simple.

Welcome to Vertical’s

Technical Webinar


To provide Vertical dealers with the necessary tools, information andexperience essential to the successful deployment and implementation of the SBX IP 320


KSU Configuration for Session Initiation Protocol (SIP) Trunks.

tools you will need
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
  • 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


ip address matrix
IP Address Matrix

** 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.



Data Network




Hub or



VOIB With A Static Public IP

Direct Internet Access Diagram


Data Network

1-to-1 NAT Capable




1-to-1 NAT Statement

Mapping Static Public IP

To Private IP Assigned to VOIB

Hub or


Do Not Confuse This With

Port Forwarding/Port Triggering

*Additional Programming on VOIB


VOIB With A Static Private IP

1-to-1 NAT Capable Device Internet Access Diagram


Data Network




Hub or


Routes to Multiple Public IP Addresses

Inside the Network


VOIB With A Static Public IP

Common Network Diagram Using Multiple Public IP’s

what is sip
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.

sip messages
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
sip methods
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
sip call setup
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.

sip error messages
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

sip call trace capture failed call
SIP Call Trace Capture – Failed Call

[SIP-CMD] INVITE sip:6024050155;user=phone




010426 C>10 04, D5 B5 09 1D 3C 73 69 70 3A 31 32 33 34 35 36 37 38 39 30 40 34 2E 37 39 2E 32 31 32 2E 32 33 35 3E 0A








contact information
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

Thank You

Questions & Answers