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VoIP/SIP

Understanding CPS (Calls per Second) in VoIP

Introduction In the ever-evolving world of telecommunications, VoIP (Voice over Internet Protocol) has proven to be a disruptive force, offering numerous benefits over traditional telephone networks, such as cost savings, scalability, and the ability to support diverse communication channels. However, as with any complex system, it comes with its own set of metrics and terminologies to understand...
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What is a SIP trunk?

If you're in the business world, you've likely heard of the term "SIP trunk" thrown around a few times. However, unless you're a telecommunications expert, you may be wondering what SIP trunking is and how it can benefit your organization. In this article, we'll dive into the basics of SIP trunking and explain how it works. What is a SIP trunk? SIP trunking stands for Session Initiation Protocol...
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What is VOIP and SIP?

Voice over Internet Protocol (VoIP) is a technology that allows voice communication to be transmitted over the internet instead of traditional telephone lines. It is a cost-effective solution for businesses and individuals looking to communicate globally without incurring high call charges. Session Initiation Protocol (SIP) is a protocol used to initiate, maintain, and terminate real-time communic...
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G.729 vs G.711 VoIP Codecs: Which Is Best?

G.729 and G.711 are two of the most popular codecs used by modern voice-over-internet-protocol (VoIP) systems to transmit calls as data over the internet. Phone systems must find a balance between delivering audio quality and requiring bandwidth, and that’s why these two different codecs exist. G.711 provides higher audio quality, but it requires more network bandwidth. G.729 requires less band...
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Emergency Calls UK

DIDcomms now provides access to 999/112 public emergency call services to VOIP customers within England, Wales, Scotland and Northern Ireland. It is possible that these services may become unavailable as a result of things over which we have no control over, for example, the failure of your internet service provider (ISP) or internet connection. In such circumstances, all serv...
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Free incoming calls to VOIP phones with DIDcomms 084 and 087 UK numbers

Notice to all customers with 084 and 087 UK numbers. Please remember that even if your destination is not included in the 084 and 087 numbers free divert plan that you can still receive free incoming calls to VOIP phone. As long as you have mobile data or wifi connection you can receive calls completely free of charge. If you have any questions please do not hesitate to contact us.
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Converting an ISDN Phone System to SIP

Any legacy PSTN services (such as ISDN) still live after the switch-off will be ceased. It is imperative to move to alternative services before this happens in order to avoid loss of service. Moving voice calls from ISDN to SIP Services is a tried and tested way of saving money on both trunk rentals and telephone call charges. ISIP ISDN to SIP Converters, allow you to start to enjoy monthly cost ...
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Using your 084 and 087 UK numbers with a VOIP phone

Did you know that even if your country or destination is not available on the 084 and 087 UK numbers free divert plan, that you can still have free forwarding to VOIP phones?!? Yes, free forwarding to VOIP phones anywhere in the world. All you need is a mobile data or WiFi connection to be able to receive incoming calls to VOIP free of charge with your DIDcomms 084 and 087 UK numbers. Order you...
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Correcting one-way audio issues with Asterisk

Troubleshooting One-way Audio in VoIP One-way audio issues are rarely the fault of your terminating call provider, they are an issue with the end-user VoIP phone, internet connection, firewall or their PBX SIP server. Fixing one-way audio issues in VoIP are best done one step at a time. Start by eliminating any double NAT possibilities by disabling NAT on any secondary routers that may be pres...
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