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Questions tagged [sip]

The Session Initiation Protocol, defined in RFC 3261, is an application layer signalling protocol for establishing and modifying long-running relationships between two or more peers. If including this tag, be sure to also tag your question more specifically to include the language you're programming in, as well as any specific libraries being used such as [pjsip], [python-sip], etc.

The Session Initiation Protocol, defined in RFC 3261, is an application layer signalling protocol for establishing and modifying long-running relationships between two or more peers.

More information at Wikipedia article on SIP

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Does Android 4.0.3 SIP API support NAT?

I am working with Android 4.0.3 SIP Api and was able to make sip call between 2 users on same network. But it is not working if one of the user is behind NAT/Firewall. Does Android SIP api support the NAT? if no, is there any workaround for it. If…
user1688293
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Android intercept VoIP call durations

I need to intercept all VOIP calls made and received from my device, and calculate total call duration. Can you suggest reading material to research? Thanks, Bakai.
Bakai Taalaibek
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SIP over TCP + convert to UDP to talk to SIP Phone

I have linphone installed on my Ubuntu 12.04 box. A coworker would like to test out a Windows SIP phone that uses, he says, SIP over TCP rather than UDP. IT occurs to me that I could create a 20 cent C++ program that has two threads, one for the…
Wes Miller
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Android SIP call.startAudio() not working

I'm making a VoIP program for Android 2.3, so no RTP API, but it should send sound as well. When I call my Android client, everything is fine. However, when I initiate a call from the Android client, the SIP communication works, but no sound at…
LevyZidane
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Third party MMS stack using SIP

Is there any third party stack available for MMS using SIP. or is there any SIP stack available which support MMS. we have to integrate MMS facility in our VOIP client in iPhone. It seems that we have to use some third party MMS stack to do this. So…
knowledgeseeker
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pjsua custom sdp

I'm using pjsua to create simple SIP UA. I need to insert custom body (SDP) in outgoing INVITE requests. As far as I know, pjsua does not support custom SDP, and I need to use more low-level API to do it. But for now I have to find any rude…
pikkvile
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Click to call with MiTel and SIP

We're looking for a click-to-call system, just with one click let your phone call the number on your screen. In our company we have lots of MiTel 5320/5330 IP Phones which also have SIP functionality Since there is a tool called MiTel Unified…
Sander
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pjsua calls fail

I'm facing a problem with calls using pjsua. Registration on server is always successful, but most of the time I try to call to my cell phone, state of call stands CALLING for ever and nothing is really happening or I get error 406 (not acceptable).…
Martin Kacerik
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How to implement video call in iOS using pjsip2.0

We want to implement Video call in iOS using pjsip 2.0. We know that pjsip 2.0 does not support video call in iOS. So what we are planning to implement to whole video call display using iOS native API. I want to know is it possible? Will pjsip give…
knowledgeseeker
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How to get the SDP information from sip class (in java)?

I am implementing a call-bridging application over Sailfin. The SIP signalling is running fine. But I need the Source and Destination RTP media port for audioCapture. How to get the port information from the INVOKE content (SDP part)? Which…
Dr Sarkar
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Lose data [ 3G / WIFI ] connectivity when phone goes to sleep mode

I am using Samsung Galaxy with ICS. I am developing a SIP client. the client loses connection with the server once the phone goes in sleep mode. Have tried the "WIFI Lock" app from android market and have tried setting WIFI_SLEEP_POLICY_NEVER but…
BTR Naidu
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Auto retrieve 100 on an Invite message on Tomcat Mobicents

I am trying to do a load tests for the call forwarding B2BUA application sample on MSS 2.00 (Sip Servlet). I am doing a 80 Caps on 4 Tomcat Instances on linux Redhat 2.6 The problem I am facing is that the 100 For the UAC invite is not send…
Chen
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WebRTC to make calls to PTSN

I'm looking at WebRTC and I'm wondering how to implement a solution where the client connects to the PTSN via SIP. It seems like a pretty new technology so I assume that this would not work on IE browsers; is this correct? Basically, I have a…
frenchie
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how to let the kamailio support Edge Proxy?

As the RFC http://www.rfc-editor.org/rfc/rfc5626.txt describes , how can i extends a Edge Proxy by Kamailio ? should i write a module , or just write the configure file ? have any one already do it ,could give me some advice . thanks .
mike
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Missing android.net.sip

I have the following versions of Andorid and Java SDKs in the following environment. I am trying to develop a SIP application but while Android.net.http and Android.net.wifi are both present, the needed Android.net.sip doesn't appear. I'm assuming…
ProgramsUnlimited
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