Refurbished Phone Exchange Blog — ip telephony

The Vertical Edge 700 (VW-E700-24) is an IP based phone purpose built for the Vertical Wave IP and MBX IP business phone systems. These are Vodavi’s enterprise and large business phone systems. The Vertical Edge 700 is a backlit phone with a 3 line display. This IP phone has a speakerphone, a headset jack, 24 programmable keys, dual color LED status indicators for every programmed key, an adjustable LCD, and numerous other features. The Vodavi IP 7024D is purpose built for the Vodavi XTS and Vertical SBX phone systems. These systems are meant for smaller businesses. The IP 7024D...

Narrowband, and more frequently Wideband are becoming buzzwords in the telecom world. Narrowband and Wideband audio refers to telephone audio sampling, how much of the frequency range is sampled provides us with the differences of narrowband and wideband. Narrowband audio is sampled at 8,000 Hz and Wideband is sampled at 16,000 Hz providing a much wide range of human tonality to pass through.   Narrowband Audio: Narrowband comes in many variations, but the most traditional version of this style of codec is the G.711. G.711 actually refers to two different codecs: G.711 mu-law is used in North America while...

Selecting a phone system for your small business can often be daunting. When just first starting out, many business neglect to think about one of their most important purchases. Business phones are critical for the ability to reach and be reached by your customers. Depending on the size of your company, several small business phone system options exist. The phone systems we’ll concentrate on today are the Bizfon 680, NetVanta 7100, Allworx 6x, and Asterisk PBX.   Bizfon 680 The Bizfon 680 is a small phone system produced by Bizfon Inc. The Bizfon 680 is an ideal solution...

  ShoreTel Voice switches are designed to allow a certain number of IP phones to connect to a phone server. In addition to allowing support for IP phones to connect to the server, certain ShoreTel voice switches were release with the ability to store voicemail. These voicemail switches are known as ShoreTel V switches. There are two commonly available voicemail switches released by ShoreTel. These are the ShoreTel 50V and the ShoreTel 90V. The ShoreTel 50V has the ability to support up to 50 IP phones through the switch. This is perfect for medium sized businesses. A separate compact flash...

  Those deploying an ESI based IP phone system will need to decide on an IP phone to use. Two of the more commonly used IP phones are the ESI 48 Key IPFP and the ESI 48 Key IPFP2 phones. If these phones sound incredibly similar to you, it’s because they are. There are two differences any telecom engineer should be aware of before deploying the phones.   Do You Need Power Over Ethernet? The ESI IPFP 48 key does not come with the ability to accept Power Over Ethernet. If you are deploying a system that has a PoE...