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Old 01-17-2016, 04:53 PM   #1
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About SIP calling


I'm new to sip/voip and want to try it out.

I have a question about sip. Can sip make calls to people on other sip providers?

For example, if I have sip account with company X and my friend has a sip account with Y, can we communicate? Or are we only allow to make SIP calls if we're both on the same SIP provider?


Last edited by rick33; 01-17-2016 at 04:56 PM.
Old 01-18-2016, 08:47 AM   #2
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The latest episode of LAS has some info on SIP.

I don't know much about sips myself, but I understand that you need a trunk provider. Which would need to be an external service for over the internet calls. But I've never set it up myself.
Old 01-18-2016, 03:21 PM   #3
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Yeah, I'm very new to sip/voip as well.

I did watch the LAS AsteriskNow setup video a couple of days ago as I subscribe to their podcasts.

Anyway, I contacted, my voip provider and he told me I can only make free sip to sip calls to other users. Also, If I want to make and receive calls to/from PSTN, mobile phones and etc, I will need a DID number and pay usually fractions of a penny per minute to call those devices.

Thanks for the reply


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