sip

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How to make a call in j2me by using SIP protocol?

How to make a开发者_如何学Python j2me application which allows the user to call?it depends on whether target device supports JSR 180 SIP API for J2ME or not[详细]

2023-04-06 17:23 分类：问答
SIP deregistration using PJSIP

In our app, we need to de-reg a user when he pushes the app to the background. We are using PJSIP. My applicationDidEnterBackground:[详细]

2023-04-06 16:09 分类：问答
Can one REGISTER request contain multiple Contact Header Fields for a single URI present in To Header Field?

What will be the practical scenario when a UA will try to register multiple cont开发者_StackOverflowact address against its SIP URI?One SIP device can only register ONE COntact in one REGISTER message[详细]

2023-04-06 01:35 分类：问答
Why are Tags required to identify a SIP dialog?

A combinatio开发者_如何学编程n of local and remote tags along with Call-ID is used to identify a dialog. It is said that Call-ID is a unique value for a call. Why then is Call-ID not used solely to id[详细]

2023-04-06 01:30 分类：问答
What is an IP Multimedia Subsystem?

I have read that IMS defines a complete architecture and framework that enables the integration of voice, video, data and mobile network technology over an IP-based infrastructure.[详细]

2023-04-06 00:58 分类：问答
Microsoft Lync Server integration as a portlet

I came up with an idea to integrate Lync Server as a Java portlet to Liferay environment. What I would like to have is people names, photos, presence information and contact points on a portlet which[详细]

2023-04-05 06:48 分类：问答
What open-source SIP clients (or libraries) there are that could be freely extended by developers?

We need to replace our current simple SIP client (X-lite) with custom developed SIP client in order for it to have specific features we need开发者_开发百科:[详细]

2023-04-04 20:25 分类：问答
SIP to PSTN gateway connection from asterisk?

We are working on a web phone application that can make sip calls to other devices and make PSTN calls as well. We use Asterisk 1.8 as our sip server. The SIP calls from the web phone is working fine.[详细]

2023-04-04 12:51 分类：问答
SIP server programming

I\'m new to SIP/VoIP programming. I want to implement a SIP server mainly for registering and proxing. I know to start from scratch is foolishness, but then what options do I hav开发者_如何学运维e? I[详细]

2023-04-04 05:32 分类：问答
Asterisk: Unsupported SDP media type in offer: video 0 RTP/AVP 0

I\'m trying to use open source Java SIP client Jitsi to do video chat. To eliminate all network and proxy issues, I\'ve setup my own SIP proxy Asterisk and both the clients are on the same LAN. I also[详细]

2023-04-03 21:08 分类：问答