C# Telephony Software

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Browse free open source C# Telephony Software and projects below. Use the toggles on the left to filter open source C# Telephony Software by OS, license, language, programming language, and project status.

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  • 1
    NbuExplorer
    Nokia NBU, NBF, NFB, NFC and ARC backup file parser, extractor and viewer. It can help you to check content of backup or extract files from it. Requires MS .Net Framework 2
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    Downloads: 144 This Week
    Last Update:
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  • 2
    SipLine

    SipLine

    Free, native Windows SIP softphone with HD audio, SRTP encryption

    SipLine is a modern, lightweight SIP softphone for Windows 10/11 built with .NET 9 WPF. It provides enterprise-grade VoIP communication with a focus on performance, security, and extensibility. Features Ultra-Fast: Startup in <0.5s, minimal CPU usage HD Audio: Opus and G.711 codecs with adaptive jitter buffer Security: TLS transport, SDES-SRTP encryption, Windows DPAPI credential protection Multi-Account: Up to 5 simultaneous SIP accounts Plugin SDK: C# SDK for custom integrations (CRM, call recording, automation) Plugin Marketplace: Community and premium extensions Headset Support: Jabra, Poly, Sennheiser, Logitech with HID controls Call Quality: Real-time MOS Score, Jitter, Packet Loss and RTT monitoring Enterprise: Silent MSI installer, GPO support, JSON centralized config Compatibility: 3CX, Asterisk, FreePBX, OVH, Twilio, RingCentral, and more Language packages : https://sipline.feelautom.fr/languages
    Downloads: 15 This Week
    Last Update:
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  • 3
    OfficeSIP Softphone and Messenger
    OfficeSIP Softphone and Messenger are two enterprise VoIP SIP clients written in C# in .NET Framework. The SIP clients make use of Microsoft UCC API SDK, ensuring the highest quality of audio and video. Compatible with Office Communications Server. See also open source, cross-platform: 1) simple messenger Brief Msg at http://briefmsg.org 2) MUVConf is a multi-user video conferencing, see demo video http://youtu.be/YrBU-Aqtvrk, download https://code.google.com/p/muvconf/downloads/list
    Downloads: 5 This Week
    Last Update:
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  • 4
    The Asterisk .NET library consists of a set of C# classes that allow you to easily build applications that interact with an Asterisk PBX Server (1.0/1.2/1.4 version). Both FastAGI and Manager API supported. .NET/Mono compatible.
    Downloads: 4 This Week
    Last Update:
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    PennySMS

    SMS software

    PennySMS is an easy to use application that allows you to send SMS messages and organize your contacts. SMS sender software for marketing, communication, promote your product etc. Suitable for Educational Institutions, Office Employees, Job Alerts, Ad Campaigning, Customer & Clients, Family/Friend Group, etc. Note: The free version is time limited. In order to remove this limitation, you have to buy the software.
    Downloads: 8 This Week
    Last Update:
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  • 6
    Downloads: 2 This Week
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  • 7
    TSAPI#
    This project provides a C# wrapper for the AT&T/Lucent/Novell/Avaya TSAPI library. This library facilitates computer telephony integration with a TSAPI-compliant PBX system.
    Downloads: 3 This Week
    Last Update:
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  • 8
    AVAYA CMS API Consumer samples

    AVAYA CMS API Consumer samples

    API Consumer of AVAYA CMS reports

    Free .NET 4.5 consumer of AVREMO.CMS.API.LimitedEdition AVREMO.CMS.API is able to Show AVAYA CMS reports as HTML, JSON and XML Render. It includes also a wrapper : .NET Client API (AVREMO.CMS.Contracts.dll) enabling fast development in .NET 4.5 consumer applications. AVREMO.CMS.API.FullEdition download page: https://sourceforge.net/projects/avayacmsapiserver/
    Downloads: 2 This Week
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  • 9
    Turn.Message is .NET parser / generator of the TURN (Traversal Using Relay NAT) messages written in C#. Compatible with [MS-TURN] extension and clients based on Microsoft UCCAPI SDK.
    Downloads: 2 This Week
    Last Update:
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  • 10
    Lync Department Contact Manager 4

    Lync Department Contact Manager 4

    Контакт менеджер для Lync Server 2010/2013

    Контакт менеджер для Lync Server 2010/2013 на базе UCMA. Позволяет централизовано создавать списки контакт листов и групп, а затем применять к пользователям.
    Downloads: 1 This Week
    Last Update:
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  • 11
    This project intends to build a complete CallerID-function for home- or small buisniess environments. It depends on simple hardware which everyone can build. It will present the incomming call's number on every workstation on the network.
    Downloads: 1 This Week
    Last Update:
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  • 12
    Tipic Inc. is proud to announce the born of the first Open Source, P2P, VoIP and Video conferencing solution for XMPP/Jabber. The target of this project is to develop a new portable set of codes using high quality libraries to add VoIP and Video to XMPP
    Downloads: 1 This Week
    Last Update:
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  • 13
    Next generation web-based, multi-tenant, distributed, mulit-lingual, inbound, outbound Video enabled VoIP & VVoIP call/ contact center solution for Asterisk with Built-in phone, IVR, CRM, Predictive dialer, ACD, Chat, Mail, Fax, Video and other features.
    Downloads: 1 This Week
    Last Update:
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  • 14
    AVAYA CMS API Server

    AVAYA CMS API Server

    CMS API Server with web site

    Free version of AVREMO.CMS.API exposing REST Services. With this software you can browse for all CMS reports. Design a report with AVAYA CMS Supervisor designer, application automatically expose data as XML or JSON. You can also browse reports with your preferred browser (desktop or mobile) and execute CMS operations like modify dictionaries, modify agent skills, modify VDN/Vector associations and more. Application package include : - A responsive WEB server interface (compatible with mobile browsers) to browse reports, perform CMS Operations and Agent Skill modification from any device having a browser. - Full Documentation - The server application, including administration GUI - Dashboard : a .NET consumer, used to test server and get REST URLs - CMS Operations (modify Dictionaries, Call Center Administration, etc) - Agent skill modification. - Basic security.
    Downloads: 1 This Week
    Last Update:
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  • 15
    Using the new C# Dll from swig portability of Openobex/ObexFtp to write a nice GUI able to transfer file between two devices with obex protocol. More Info’s here: http://cs-obexftp.wiki.sourceforge.net/
    Downloads: 1 This Week
    Last Update:
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  • 16
    It's new technology for Development Personal Creation/Customization Services , based on XML standard and DAFSM (Finite State Machine Theory) , using multiple call control protocols.
    Downloads: 1 This Week
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  • 17
    Echoshare is a .NET application that grabs images and video from Ultrasound Systems and sends MMS to the patient with the grabbed ecography images. The technologies involved are: .NET, C#, Direct X, UMTS, MMS, Microsoft Speech, Web Services, ASP.NET
    Downloads: 1 This Week
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  • 18
    Software for communicate with the NEC n21i. Chance the phone book, send sms, administrate your phone settings. Change your cell phone background, add new pictures for the caller-id's aso.
    Downloads: 1 This Week
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  • 19
    mSeller is a mobile application for concluding agreements, keeping info about clients and goods. Program is targeting Windows Mobile 6 and may be useful for various business fields. Written using C#, .Net Compact Framework 3.5 and SQL Server Compact.
    Downloads: 1 This Week
    Last Update:
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  • 20
    Asterisk Channels Live

    Asterisk Channels Live

    This is a PBX dashboard showing the peer,queue,agent at real time

    http://www.astchannelslive.com/sourceforge.php This is a dashboard work with Asterisk(FreePBX) any other installation: 1. Showing the peer status 2. queue,agent at real time 3. Hangup, Spy,....
    Downloads: 0 This Week
    Last Update:
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  • 21
    The goal of this project is to design a software that can handel all he CDR of any type of PBX like Panasonic, Nortel, .... or even VOIP PBX like Asterisk
    Downloads: 0 This Week
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  • 22
    Auto IVR Dialer automatically dials telephones numbers from a list and connects to IVR. Very useful for promotion campaigns. Any unsuccessful calls due to no pickup or busy will be attempted again. It shows the complete summary as well as individual deta
    Downloads: 0 This Week
    Last Update:
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  • 23

    Bria Desktop API Samples

    Samples and wrappers around the Bria desktop API

    The Bria Desktop API has moved to github at https://github.com/CounterPathAPI. Additional samples for Java and Javascript can be found there. The Bria Desktop allows third-party applications to control Bria for Windows softphone clients. By leveraging the Application API, third-party applications can perform commands such as starting an audio or video call, answering a call or placing a call on hold. CounterPath is now encouraging third-party-application developers to integrate their applications with Bria. Suggested applications range from simple functions such as enabling click-to-call from web pages, to integration with sophisticated Call Center, Customer Relationship Management (CRM) and Health Care applications. This project provides sample and convenient wrapper code to utilize this API. *Note* you need a Bria desktop application to utilize the API.
    Downloads: 0 This Week
    Last Update:
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  • 24
    http://www.open-source-soft.narod.ru/dtmf_cs.7z C# DTMF detector and generator classes. It was used completely fixed point arithmetic, so algorithms as fast as possibly.
    Downloads: 0 This Week
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  • 25
    The CUAE SDK is an open source software development kit with sample applications and documentation for the Cisco Unified Application Environment.
    Downloads: 0 This Week
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