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My SIP provider (Voip.ms (I am unaffiliated to them beside being a customer)) just send them by email, for free. It's included in my ~0.70$ USD per monthly plan
by Elv13 11y ago
My SIP provider (Voip.ms (I am unaffiliated to them beside being a customer)) just send them by email, for free. It's included in my ~0.70$ USD per monthly plan (pre-paid almost forever on a 25$ payment). So, these day, I find it ridiculous to pay for a carrier voice/sms plan. It's pointless.
The worst thing that can happen is having a use a VPN on top of the SIP stream for carriers that void net neutrality. Tablet data plan + SIP = win
* You get your calls on your computer and devices, all of them, for the same price.
* You can script your softphone to pause your music and answer in your music headset
* You can add a SIP server in from of the link to add new features.
* You can inter-operate media stream from Skype/(name your IM app) and "real" phones for "free"[1] using pulse audio / core audio.
* Usually, multiple line, transfer and conferences are included, you don't have to pay extra. If they are not, you can implement them using your own SIP server or some scripts.
* Most softphone have multiple account support, so you can have your business phone and home phone on the same devices, but with different Ringtones.
The possibilities are near limitless _and_ it is beyond cheap. The main downside is that you almost have to be an IT person to be able to make it all work :P
You don't have to pay for Skype _and_ a phone plan, only your phone plan.
/shameless plug
If your using Ring.cx (I am one of the dev), you can also seamlessly make end-to-end encryptet and decentralized/P2P calls if your peer also use Ring.cx (or anything SIPS compatible, minus the decentralized part, so technically risking a MiM).
- cookiecaper 11y agoIt's been a long time since I've tried to do serious SIP usage on Linux, but way back when, I could never get a client that worked consistently. One or the other would work fine for a while, until either the client, a library elsewhere on the system, or the SIP server would update, and then it'd misbehave terribly and I'd have to go through the roulette and try to find another client that worked well (not always possible). Is the situation better now? What do you use?
- voltagex_ 11y agoWhen I looked for a Windows and a Linux SIP client, I found that most things were based on PJSIP so all suffered the same problems. SIP (and RTP/RTMP) are complex to implement, so I don't think many people try.
- z3t4 11y agoI recently installed asterisk and I have SIP built in into my mobile. Works very well, and was easy to setup.
- xgbi 11y agoGive Linphone a try. UI is old school on Desktop, but it works fine. We have mobile clients too. Disclaimer: I'm a linphone developer.
- cookiecaper 11y agoLinphone was the last client I had working before I gave up totally. Though it would often hang when trying to make a call, it worked well enough for 3 months or so. I started having to compile the builds from git and eventually it got to the point where the app was hanging every time I made a call and I'd have to kill -9 it. It's probably been 3 years or so since I tried it. Similar experiences were had with twinkle and a couple of other clients before I found Linphone.
- voltagex_ 11y agoPity they don't have any servers <150ms away from me: http://wiki.voip.ms/article/Choosing_Server http://wiki.voip.ms/article/Choosing_Server. I'm in Australia, so the SIP server really has to be in Sydney or Melbourne for it to work for me (~70ms RTT on ADSL). Someone from Perth can yell at me for being so Eastern-centric.
- Tepix 11y agoIf you just use them for SMS, latency won't be an issue.
- voltagex_ 11y agoI haven't had a landline in about 4 years (known as "naked" ADSL - there's no dialtone on my copper line). I played with VOIP for quite a while but could never really get the quality I wanted. Then the mobile costs came down enough so I haven't looked since. Hangouts and Skype solved my international phone call problems, although I'm not entirely sure how they solved the echo/delay problems so well. Edit: oh, right, this was an SMS specific article.