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Upgrade from 2.1.14 to 3.4.0


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I have license for your product pbxnsip, bought via Intechnologies at Russian Federation, Moscow.


Available features:

Name: Intechnologies

Type: PRO

Mac Address: 00d0437b0f37

IP Address:

Dongle Address:

Calls: 55

Accounts: 80

Extensions: 55

Domains: Unlimited

Attendants: Unlimited

Calling Cards: Unlimited

Hunt: Unlimited

Paging Group: Unlimited

Service Flags: Unlimited

IVR Nodes: Unlimited

Agent Group: 12

Conferences: Unlimited


Trunks: Unlimited

SOAP: False

Barge: True

Secure: False

CDR: False

Lowrate: False

Recording: True

Expires: Permanent


I've heard, that after some version, you've changed licensing scheme.

Now I want to upgrade my software (using 2.1.14) and have a question: what is the latest version, which I can use?

Can I upgrade to without problems and keeping all functionality?


Best regards,

Maksim Kachalin.

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Hi, To go to 3.4 and beyond you need to be on Upgrade protection. Talk to your reseller to get a price. Thanks,


What is the last version of software I can use with my current license without any payments?


What is "Upgrade protection" and why I have to pay moneys for software, that I have already bought?

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