- About VoIP
- What is VoIP and what it can do for you
- Introduction to VoIP (video)
- Why should you switch to VoIP services?
- Analog Telephony
- Digital Telephony
- What is SIP?
- How to start with VoIP telephony
- Web based VoIP
- How to choose a right VoIP provider?
- Wi-Fi network and VoIP
- VoIP Codecs
- Free sip account
- Confidential calls
- VPN: UDP or TCP?
- Mobile VoIP
- VoIP on your mobile
- Asterisk IP-PBX
- Who we are?
- How to start
- Free SIP account
- Configs
We all strive to get a quality telephony, but when we do some analyze of the voice quality issues and most common reasons that may lead to the problems with the VoIP service quality we should take into account the VoIP equipment, including IP-phones.
Looking closer: what is an IP-phone
VoIP phone is a [...]
Facetime – Calls Quality, QoS and firewall ports in use
Video calling will become an increasingly widespread form of communication in coming years, moving from
broad adoption in the consumer market to selective endorsement in the corporate world. The same executives
who video-call their families when on the road will also use FaceTime [...]
Sometimes it’s a pain in the ass to install software on unix based systems without having prior knowledge to the OS/kernel versions. You’d do something on debian that doesn’t work on CentOS, Fedora has yum pre-installed where as RHEL4 comes with up2date but you have to have a key, then there’s always RPM’s but who [...]
In this article we will talk about Nokia Internet telephony and SIP settings since many people asking me about that. I have check all configuration myself on my old Nokia E52 as well as E71 buddy and everything works fine. Therefore you can use the same setup procedure on any E-series with Symbian.
The protocol overhead caused by the encapsulation of VoIP protocol within VPN dramatically increases the bandwidth requirements for VoIP calls, thus making the VoIP over VPN protocols too “fat” to be used over a mobile data connections like GPRS, EDGE or UMTS. Although VoIP over VPN is not as usable in mobile environments, it is [...]
Ok, most of us know that Voice Internet Protocol (VoIP) Telephony refers to the technology used for making telephone calls over the Internet. We trying to make this technology as easy as possible for engineers/geeks who trying to deploy it all around and also for users who just want to pick up the phone and [...]
Due to human perception, VoIP is much more sensitive to certain network conditions that are considered well within spec for most applications.
Network issues such as packet loss, jitter, and packet sequence errors are inherent to IP networks, and are well corrected and tolerated by data transfer protocols. Voice transmissions are real‐time by the nature; [...]
