Top "Sip" questions

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.

Meaning of "487 Request Terminated"

Please tell me when a SIP call return 487 Request Terminated? Is it a termination issue?

sip voip
Best C++ RTP/RTSP library

I'm looking for a RTP/RTSP library in C++. I found pjsip but it is more C-style. I'm looking for …

c++ udp sip rtp rtsp
iOS: Open Source VoIP/SIP Objective-C Code

I have been tasked with investigating the feasibility of writing an iPhone App to access our internal VoIP/SIP systems. …

iphone objective-c open-source voip sip
Capture RTP and SIP Traffic using tcpdump

I need to capture SIP and RTP traffic to find a problem with something. I can capture SIP messages fine …

sip rtp tcpdump
C# SIP Stack/Library

I am looking for a good SIP library either written in C# or that provides a C# wrapper. Does not …

c# voip sip
with SIP, when to use TCP not UDP?

I know pretty the differences between UDP and TCP in general (eg. http://www.onsip.com/about-voip/sip/udp-versus-tcp-for-voip) Question …

tcp udp sip voip
Asterisk,SIP Retransmission timeout

I have created a sip trunk from One Asterisk(version 11.2.1) say 'A' server to another Asterisk server(11.7.0) say 'B', and …

sip asterisk
"SIP/2.0 488 Not acceptable here" error

I am new to MjSip and I use MjUa for creating a client. I want to connect to a asterisk …

sip sip-server mjsip
SIP-Client for Raspberry Pi that works from command line?

i want to use my raspberry pi as a SIP/VOIP-Phone, just controlling the RPI via SSH. I found some …

client raspberry-pi command-line-interface sip voip
Python SIP library

I need to write python application connect to trixbox that run as SIP server. But I not found any library …

python voip sip trixbox