- Introduction
- VoIP Technology
- Ozeki VoIP SDK
- Developers Guide
- Softphone Development
- Basic softphone examples
- Advanced examples
- Multiple phone calls
- SIP message operations
- Out of dialog messages
- Implement Autodialer
- Implement SIP SMS
- Create C# Callback Form
- ASP.Net softphone
- C# WPF softphone
- WinForms softphone
- VB.Net WinForms phone
- Visual C .Net softphone
- Motion Detection
- SIP/SDP message manipulator sample
- Sound quality
- Direct calls among clients
- Manage NAT traversal
- Webphone Development
- Voice Recording
- IVR Development
- PBX Development
- Call Center Development
- VoIP CRM Integration
- Alert systems
- IP Camera
- Mobile phones and platforms
- Billing
- Tutorial
- Appendix
- FAQ
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C# SMS API
Developers can use our C# SMS API to send SMS from C#.Net. The C# SMS API comes with full source code
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SMPP SMS Gateway
SMS service providers use our SMPP gateway solution, that offers a high performance SMPP server and SMPP client gateway with amazing routing capabilities
How to manage multiple phone calls at the same time
This guide explores how you can setup Ozeki VoIP SIP SDK for managing multiple phone calls professionally.
Multiple phone calls
Telephoning nowadays is not only about calling somebody to tell some news but also a tool for making business calls. A company telephone line has to support more than one incoming call at the same time (Figure 1).
The support of multiple calls means that the telephone client can handle more than one call at the same time. This does not necessarily mean that the callee hears all the calls simultaneously but the calls are put into lines and the company telephone agent transfers the calls to other telephones within the company system. While the company telephone network seems to be a single telephone end-point from outside.
Ozeki VoIP SIP SDK has an illustrious support for multiple calls, you only have to handle them. There are flags that indicate the number of the actual calls, the selected (active) call and the incoming call ID in case of an incoming call.
How to handle multiple phone calls in C#
You can find a well-detailed step-by-step guide with example about multiple phone calls at the How to handle simultaneous calls effectively article.
You can use more than two simultaneous calls with Ozeki VoIP SIP SDK, too. In that case you should use some kind of list for the calls but the basic concept is the same as in the case of the example program. Now you can use this knowledge to build your own solution with multiple call support.
Select a suitable Ozeki VoIP SIP SDK license for multiple call management on Pricing and licensing information page
Related Pages
More information
- How to operate with sip message
- How to work with out of dialog sip instant message
- How to build an autodialer in C# using the Ozeki VoIP SIP softphone source code
- How to use the csharp sip softphone source of Ozeki voip sip sdk for creating a sip SMS example
- How to create a Callback form using the Ozeki C# SIP VoIP softphone source
- How to develop voip sip softphone using asp net
- C-sharp WPF softphone
- How to develop softphone using csharp Windows form
- How to develop Windows forms voip sip softphone using visual basic net
- How to develop voip sip softphone using cplusplus
- How to implement motion detection using Ozeki voip sip sdk in csharp
- How to manipulate SIP/SDP Messages using Ozeki VoIP SIP SDK