How to Choose a VoIP phone?

Although they are inexpensive software within mobile computer telephony integration (CTI) eulwihan to provide the best option compared to mobile phones is the hardware. Hardware, they must be easy to use phone that does not require a computer. In this article, you choose a VoIP phone is about to consider a different question.


Consider the following factors in selecting a VoIP phone are:

VoIP phones that support the control protocol to try to understand, this may include:

- H.32: 3 - This is the voice, video and data conferencing protocols and standards for multimedia conferencing is configured. It

- SIP and - the session initial protocol for voice, video and data conferencing network used in the packet switch consists of multimedia conferencing is an IETF standard protocol.

- MGCP - Media Gateway Control Protocol is the protocol used in VoIP systems, it mainly addresses the needs of carriers - IP telephone network was developed based on the underlying protocol.

- IAX2 - IAX it's the same amount of bandwidth to support more concurrent VoIP phone VoIP phone set, the competition more than the protocol used, because the bandwidth efficiency.

In addition to support VoIP phone to know the type of code is recommended. Here are some examples of the code of VoIP, they are G.711, G.722, G.723, G.726, G.727, G.728, G.729, ILBC, speed, and the GSM - the full speed, which may GSM - Enhanced Full Rate, a GSM - Half-Rate and the DOS FS - 1015.

Other factors may also be considered include:

- Whether or not it supports 3-way phone call is good to see.
- Whether you call (not) to support the DND do not disturb, please check.
- It's whether the phone supports custom ring tones are so lucky.
- Whether you call a router and NAT (Network Address Transaction) on the back can provide a way to determine whether action is recommended.
- Check whether the phone supports STUN.
- Whether you flip the phone in real time transport protocol (RTP) to determine whether you can support.
- Mobile phone also supports SIP outbound proxy must be able to do.
- Mobile phone based on the quality (QoS guarantees) must comply with.
- Check whether the phone will also support encryption.

If the hardware VoIP phone number:

Via Ethernet to do it whether or not sport an Ethernet connection (Power - check your connection supports VoIP calls) is.
- IPv6 support to determine.
- To determine whether the support of the videoconference.
- Codeless phone or cell phone to make sure this coding.
- Whether a phone or cell phone headset, make sure you enter.
- By phone to verify whether the speaker.
- Whether the LCD display and the display is backlit display, check whether the.
- Check for a good or perfect ergonomics.
- Whether you like the style and comfort you are sure.

If the software of the VoIP phone number:

- To determine whether the mobile phone software is compatible with your operating system to verify.
- Check whether the phone software or you can easily use by operators of fate sure.
- Specify whether users see the various skins support.
- Check whether the software that supports video conferencing.
- Software support to see whether the shared white board.