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Description

SIP .NET is a Session Initiation Protocol client library for .NET. The library allows you to send and receive SIP messages, manage sessions, handle authentication and more. Written in 100% managed C# code.

Supported .NET Versions

• .NET Framework 2.0+
• .NET 5.0 / 6.0 / 7.0 / 8.0 / 9.0 / 10.0

Examples

Register

• Register
• Register and listen on the specified port
• Register - Advanced method
• Register - ASP .NET application
• Register - Pocket PC application
• Unregister
• Get registered contacts

Create, update and end media session

• Invite
• Invite - Advanced method
• End session
• Cancel invitation
• Reinvite
• Reinvite - Advanced method
• Send info
• Send info - Advanced method

Send response

• Accept Invite - Advanced method

Instant messaging

• Send instant messages
• Send instant messages - Advanced method
• PC2PC Messenger - B2BUA

Subscribe

• Subscribe
• Subscribe - Advanced method

Publish

• Publish event state

Call services

• Call control - Solution I
• Call control - Solution II
• Call hold
• Call transfer
• Conference call (Third party is added)

Querying for capabilities

• Get options
• Get options - Advanced method

Tutorial

C# and VB examples

Evaluation version (version 1.0)

Download 30 days evaluation version

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