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In SIP SDP, the session parameters can be changed during the lifetime of a session by sending a...

SIP Clients SIP clients are software applications that run on devices such as computers, smartph...

SIP Servers Registration Re-Registration SIP Proxy Servers  SIP Server - Proxy mode SIP Se...

Back-2-Back Thee B2BUA its a standalone proxy when it receives a request process the request...

Mime was defined to provide a way of attaching different document/file types to email messages, S...

SIP SDP SIP SDP stands for Session Description Protocol and is a protocol used to describe multi...

SIP messages are the communication units used by SIP endpoints to establish, modify, and terminat...

SIP Addressing In SIP (Session Initiation Protocol), addressing is used to identify the endpoint...

A sip message looks like an HTTP message here is an example of a SIP header.   INVITE sip:user...

SIP response codes are made up of 3 digits, first digit in the code indicates the class of the re...

SIP request methods are used to initiate a request from a client to a server or from one server...

User Agents A SIP (Session Initiation Protocol) user agent is a software application that runs o...

Verify system health usdensbc2# set-system-state offline Are you sure you want to bring the s...

  Running nextcloud PI on LXC sometimes it stops working and needs a refresh of php service. $ ...

The objective of this first series of entries is to setup an environment to be able to perform te...

We need to deploy 2 virtual machines in order to test communication between phones via Oracle SBC...

    Oracle SBCs have dedicated interfaces to be used for signaling and media, those interface...

Oracle SBCs can be administered via web and CLI, both ways have pros and cons, in this entry we w...

The last step for this basic lab environment is to create routing to connect the External and Int...

With the current configuration Oracle SBC is now able to process signaling but there are two prob...