polycom sip

kbit/s, at a frequency of up to a rate of up to three Hz. It uses the MS-frame to provide 40ms algorithm latency.The G722.1 achieves lower bit rates and greater compression than the g.722 codec. The goal is to achieve roughly the same quality as the g.722 at approximately half the bit rate. This license to use the code requires the authorization of Polycom Corporation.5, G722.1 Annex CThe G722.1 Annex C is based on Polycom's siren 14 compression tech

Analysis of key technical issues of IMS-based network convergence Font Size:SmallMediumLarge|PrintRelease: Author: webmaster Source:Network reposted: 78 timesThe emergence of Softswitch technology has led to the adoption of Softswitch technology for the integration of core control layers. However, due to the large differences in fixed and mobile Softswitch functions and protocols, Softswitch has become the focus of control layer integration. The possibility is reduced. With the emergence of

Development Environment:MAC OS 10.12.3 版本Pycharm 2016.3.2 版本Python 3.6.0 版本PyQt5 5.8.1 版本（pyinstaller: Package python code as an executable EXE file. EXE file for Windows, but this chapter does not install, but do not rule out the post-update article, because Bo Master has not been started, have not considered so much!!! "embarrassing") Why write this blog?The data is too little (almost complete), spent 1 full-time to configure, do not want to waste, time is money can not buy .What

to three Hz. It uses the MS-frame to provide 40ms algorithm latency.The G722.1 achieves lower bit rates and greater compression than the g.722 codec. The goal is to achieve roughly the same quality as the g.722 at approximately half the bit rate. This license to use the code requires the authorization of Polycom Corporation.5, G722.1 Annex CThe G722.1 Annex C is based on Polycom's siren 14 compression technology, which uses 32kHz sampling frequency t

**************************************** **************************************** **************************************** ***Easywave time: 2014.08.030 Category: Linux applications-semi-digital building Intercom SystemDescription: reprinted. Please keep the link NOTE: If any error occurs, please correct it. These are my Learning Log articles ...... **************************************** **************************************** **************************************** *** I. Introduction to

Osip2 is an open-source SIP protocol stack, which is not frequently written in C language in open source code. It has the characteristics of being short and concise, focusing on the underlying parsing of SIP makes it more efficient. Exosip is an extended protocol set of osip2. It partially encapsulates the osip2 protocol stack, making it easier to use. I. Introduction Osip2 is an open-source

Reprint Please note: @ small Wuyi: http://www.cnblogs/xiaowuyi Using the sniff command for simple sniffing can capture some simple packages. When no interface is specified, each interface is sniffed. When an interface is specified, only this interface is used. For example; >>> sniff(filter=,count=) Result: For example, the sniffing of the ppp0 Port: >>> sniff(iface=,prn=lambda x:x.summary()) View Baidu and the result is as follows: IP/UDP 27.214.219.76: 53144> 122.225.83.67: http/RawIP/UDP/DN

Address: http://www.pjsip.org/pjsua.htm Introduction Pjsua is an open-source command line SIP User proxy (soft phone), which is implemented using pjsip protocol, pjnath, and pjmedia. Although it only has a simple command line interface, it is fully functional. SIP function: Multiple IDs (account registration );Multiple calls;Support IPv6 (added in version 1.2 );Prack (100rel, RFC 3262 );Update (RFC

need to discard the received ARP packets 3. Handle the ARP packets that meet the conditions. Here are some of the conditions for handling ARP packets: Criteria for discarding packets: 1, arp_process only processing request, reply ARP packet, discard other types of packets A for packets of type request, the discarded destination address is either multicast or loopback ARP data. For data packets that need to be processed, they can be divided into several areas: 1. Processing of reply packets for

Osip2 is an open-source sip protocol stack, which is not frequently written in C language in open source code. It has the characteristics of being short and concise, focusing on the underlying parsing of sip makes it more efficient. EXosip is an extended protocol set of Osip2. It partially encapsulates the Osip2 protocol stack, making it easier to use. I. Introduction Osip2 is an open-source

", "$ AVP (media_relay )") If mediaproxy prompts "no suitable relay found", it may be a certification issue. Reference (Unfinished) Capture sip packets Use tcpdump on the server where opensips is located to capture the SIP package for analysis (note that the NIC to be crawled is eth0 or eth1 ): Tcpdump-NQT-S 0-a-I eth0 port 5060-W/home/capture_file_name.pcap Refer:Http://jonathanmanning.com/2009/

ArticleDirectory Fork Module No. 1 dual-host The No. 1 dual-host service refers to the caller who calls a called phone number. Two or more calls bound to the called phone call at the same time. Either of them can answer the call first. After the first call, the other calls will stop ringing. Most of the functions implemented by traditional switches are implemented on the intelligent network platform (in), which can be easily implemented on the softswitch platform such as Yat

Based on IP to judge, will automatically jump to the visitor's IP according to the location of the city's local substationThe reference code is as follows: Function lookaddress (SIP)Dim str1, str2, STR3, STR4Dim numDim IRSIf IsNumeric (Left (SIP, 2)) ThenIf sip = "127.0.0.1" Then sip = "192.168.0.1"STR1 = Left (

relevant parameters, edit/etc/zaptel. conf ("[]" is not required when the te110p card is used)SPAN = 1, 1, 0, CCS, HDB3, crc4[SPAN = 2, 2, 0, CCS, HDB3, yellow]Bchan = 1-15, 17-31 [, 32-46,48-62]Dchan = 16 [, 47]Loadzone = CnDefaultzone = CnConfigure/etc/asterisk/Zapata. conf:1) shield the configuration of the following line in the middle; Signalling = fxo_ls2) cancel the following line of comments at the end of the file;Switchtype = euroisdnSignalling = pri_net (or pri_cpe, the two must be con

These two days have been spent on router. Dynamic ~ I thought it was the reason for connecting to MySQL, so I changed the code to run it out of Asterisk and it was correct... However, the call in Asterisk (Extension) cannot run normally! 11:55:24 Execute $ AgI-> exec ('set', 'fri2 _ agistatus = 1') in Echo. The debugging information is printed in CLI. But when calling the router, you cannot see it... it's strange. 13:42:48 Continue... 13:42:59 -- Executing [101 @ from-exten-

("[]" content not required when using the te110p card)Span=1,1,0,ccs,hdb3,crc4[Span=2,2,0,ccs,hdb3,yellow]BCHAN=1-15,17-31[,32-46,48-62]DCHAN=16[,47]Loadzone=cnDefaultzone=cnConfigure/etc/asterisk/zapata.conf:1 shielding the middle of the line configuration; Signalling=fxo_ls2 Uncomment the following lines at the end of the file;Switchtype = Euroisdnsignalling = Pri_net (or PRI_CPE, two must be configured differently to enable two-machine direct interconnection)Group = 1Channel => 1-15,17-31[,3

Qgis is an open source desktop GIS tool written with QT framework. It is a good tool for learning GIS and QT. This article describes how to compile the source code of qgis In ubuntu. Reference link: Http://gvision.info/using-qtcreator-with-qgis/ Http://hub.qgis.org/projects/quantum-gis/repository/revisions/master/entry/INSTALL Environment: Ubuntu 11.10 1. Dependent tool set: -Cmake> = 2.6.2 -Flex -Bison >=2.4 Ii. Dependent libraries: -QT> = 4.4.0 -Proj> = 4.4.x -Geos >=3.0 -Sqlite3> = 3.0.0 -

Since the recent time is quite tight, the code implementation and testing is not ready to take into account, here only for thinking Records: Dependent conditions: 1, know all DHCP allocated IP (hereinafter referred to as DIP), and to modify the static IP (SIP) 2, there is a script, through its configuration file, you can modify the host name, IP and other information (completed) 3, two groups of IP in the form of arrays, write script configuration

1. Installing QTConfigure QT PATHAppend in the/etc/profile fileExport qtdir=/usr/local/qt5.4.2/5.4/gcc_64export ld_library_path=${ld_library_path}:${qtdir}/libexport Path=${qtdir}/bin:${path} Note the order of ${qtdir}/bin and ${path}! Because there are many QT commands in the Ubuntu14.04 default ${path} path (specifically a soft connection to Qtchooser, Qtchooser will eventually choose the QT4 command that comes with the system: but these commands do not exist by default), if ${ Qtdir}/bin afte

. ReadTextOStream. CloseSet oStream = NothingEnd FunctionPrivate Function GetClientIPAddrIf IsNothing (GetServerVar ("HTTP_X_FORWARDED_FOR") ThenGetClientIPAddr = GetServerVar ("REMOTE_ADDR ")ElseGetClientIPAddr = GetServerVar ("HTTP_X_FORWARDED_FOR ")End IfEnd FunctionPrivate Function GetServerVar (byVal sText)GetServerVar = Request. ServerVariables (sText)End FunctionPrivate Function IPToNum (byVal sIp)Dim sIp_1, sIp_2, sIp_3, sIp_4If IsNumeric (Lef