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Making Use of Wideband Voice Right Now!: SIPGate

SIPGATE

Thilo Salmon, CEO of  SIPGate, was our guest on the VUC call on June 4th. Until then I had only passing awareness of the company, primarily as a result of speaking with some associates in the UK and Germany who have used the service for years. I signed up for an account just to give it a whirl. Further, I was more than a little intrigued when Mr Salmon said that the service has some support for wideband calling using G.722.

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Nerd Vittles Guide to ISN

Over at Nerd Vittles that Asterisk Guru Ward Mundy has posted a great how-to implementing ISN lookups with his popular PBX-In-A-Flash Asterisk distributions. It's a great overview of ISN and ITADs, including Freenum.org. ISNs are a novel approach to bridging…

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Making Use of Wideband Voice Right Now!: Gizmo5

This article was originally posted in June 2009, before Gizmo5 was purchased by Google.

gizmo5logoLast week I suggested Skype as an easy way to get started with wideband VoIP. Michael Robertson’s Gizmo5 is a great alternative to Skype.

Whereas Skype is a relatively closed network using proprietary protocols and codecs, Gizmo5 is based on SIP, a global open standard. A Gizmo5 account can be used from the Gizmo5 soft phone client or any SIP compliant device. That means that the myriad of SIP phones (hardware & software varieties) can be used with Gizmo5.

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No Jitter: IPT Lessons Learned, including Wideband

Sorell Slaymaker of Unified IT Systems he penned an interesting post over at CMPs No Jitter blog. The post starts out as follows:

After architecting a 50,000+ seat IP Telephony system and seeing it through rollout, this is what I would recommend to do different.

Wow! That’s huge. Got my attention right away! He goes on to give a list of brief but really meaningful points about various considerations in any significant telephony installation.

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