Tag: trunk – DIDcomms

VoIP to replace ISDN

Posted on April 20, 2019May 15, 2020 by Daniel Kobale

After nearly 25 years of continuous service, ISDN channels are finally coming to their end of days. As more and more businesses migrate away from ISDN technologies we explore the reasons for the decline and the replacements on offer to businesses in more detail. So what is ISDN? ISDN stands for integrated services digital networks. It is a standard developed to cover a range of mediums like voi...
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What is the difference between VoIP and SIP?

Posted on February 16, 2019March 8, 2019 by Daniel Kobale

The differences between VoIP and SIP. VoIP calls are sent via SIP Trunks. VoIP and SIP work in conjunction with each other! Your telecoms supplier provides the SIP trunks as this is how all your VoIP calls, fax and data are transited. You cannot make a VoIP call or send a fax to another phone line without SIP trunks. Let’s say you’re in your office; when you make a call via...
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Asterisk configurations for sip.conf and extensions.conf

Posted on July 14, 2018March 28, 2023 by Daniel Kobale

DIDcomms is completely compatible with VICIdial and Asterisk. These are some configurations that we have used with our clients to configure their Asterisk and VICIdial SIP/VoIP servers. Our IP addresses for inbound/outbound: sip.franzcom.com 5.144.84.191 5.144.88.163 Account entry for OUTGOING SIP IP authentication. username= secret= disallow=all allow=ulaw allow=ala...
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What is SIP Termination?

Posted on March 1, 2018May 15, 2019 by Daniel Kobale

About SIP call termination? SIP termination is a service which allows users to use VoIP technology for making outgoing voice calls to external phone networks all over the world, including public switched telephone network phone numbers, as well as mobile wireless operators. Tariffs for SIP termination service vary from one SIP termination provider to another and calling rates vary depending on...
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Move from ISDN to VoIP/SIP

Posted on November 2, 2016May 15, 2019 by Daniel Kobale

Simple steps to SIP migration from ISDN If you’re still running most of your calls over ISDN, it’s worth taking a serious look at how easy it is to switch to cheaper, more flexible SIP connectivity. Why make the switch? Until recently ISDN had been the only viable choice for most companies – from SMEs to large corporations – to ensure business-grade telephony. But the last 12 months has seen a ...
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