SIP Phone 4 line

Cisco SPA 504G 4-Line IP Phone
Cisco SPA 504G IP Phone SPA504G 336

What is a Sip phone? Can someone please say where a Sip phone is, and in technical terms how does it work?

What is the best Sip phone? How do you choose the best Sip Phone, when you are looking for one to purchase? What is the best price?

Well, I have been using this kind of service for well over a year now, and basically Sip functions just like a soft-phone in the sense that its actually not a physical phone but an application that has the look and feel of a phone using a non-tactile dial pad. Alternatively you can buy hardware to make this function like a regular phone as well. What is SIP-- "SIP is the most popular Voice over IP (VoIP) standard. SIP enables two or more people to make phone calls to each other using the Internet to carry the call. By using the Internet, you gain some distinct advantages over traditional telephone calls or PSTN (Public Switched Telephone Network):" The iPhone and Android for example, have applications that you can download that will allow you to make free calls and send unlimited text messages [member to member, at no charge]. The best out there in my opinion is one called Smart Mouth Mobile [sources stated below] I have been using this application and it has saved me A lot of money, especially on a recent trip to Tahiti where carrier charges were at $6.12 per minute. I even made a couple calls on the cruise ship that were really clear! Now that was impressive.. I hope that helped..Ken

Kenny Suchens | Read more

Cisco SPA 501G 8-Line IP Phone

Cisco SPA 501G IP Phone SPA501G 336

Order at Amazon for Too low to display

How do i reset password for Thomson speedtouch ST284 SIP phone?

I just got a Thomson speedtouch ST284 SIP Phone from my friend and i couldnt login to the web based configuration page since password is incorrect. I've tried using default username and password but no luck :( there is no hard reset button for me to poke so if any one could help me on how to reset the password I would really appreciate that.

According to the User Guide, you can only do a Factory Reset after logging into the phone web admin page. http://www.thomsontelecompartner.com/telephony-solutions/products/previous-product-detail.php?id=28 You need to ask your friend that gave you the phone what the Admin PW is.

Mr. VoIP | Read more

Why it is hard to find a cordless or wireless SIP phone?

Im trying to build a small PBX for the home use, but unable to find a compatible SIP cordless phone.

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How do you call back a SIP phone, or is it even possible?

I am using my iphone/fing and "Free Call" to make SIP calls, but i do not know how to have my friends call me by SIP. the SIP number on their caller ID does not work for them to call me back. Is there a way for them to call me on my SIP phone?

The simple answer is: Generally speaking, no, PSTN landline phones cannot directly call SIP numbers directly. SIP numbers (URI's) can only call each other over the Internet. A URI is just like an Email address. Just as you can send email from one email account to another email account, so too can VoIP calls be made from one VoIP user to another. But, in this case, VoIP calls can only be made between different VoIP providers when they have "Peering Agreements" between their VoIP networks. Otherwise, VoIP will not traverse between private networks without the peering agreements. When you call a PSTN landline phone (or cell), what they see on their caller ID can be most anything and not necessarily your VoIP virtual number. By the way, Virtual Number is a rather loose term. It can mean anything from your VoIP account number, your URI number, or your DID (Direct Inbound Dialing) phone number. DID is the more correct industry term primarily used to denote a "real PSTN phone number" associated with your VoIP account. I have DID phone numbers associated to my VoIP account so that people on landlines and cells can call my VoIP phone. Without the DID, they can't reach me on my VoIP account. But, In-Network clients of a VoIP provider can all call each other by their Virtual numbers, or URI's for free. In-Network calling is almost universally free. And if someone on another VoIP network that has peering agreement with my VoIP network, they can dial my SIP URI can call me for free too (because it's all over Internet, just like email). If you are using Free Call, then Free Call does not sell DID phone numbers for people to call you from landlines.

Mr. VoIP | Read more