background preloader

Sip

Facebook Twitter

Asterisk

Broadsoft. Mobicents. Nat. Softphone. Rtp-proxy. Sip-examples. Trunk. Jain-sip-applet-phone: Project IP Telephony / VOIP for the people. SIP Recorder,VoIP Recorder,Record SIP,Record VoIP,VoIP Recording Software,SIP Recording Software. List of SIP response codes. SIP requests and responses may be generated by any SIP user agent; user agents are divided into clients (UACs), which initiate requests, and servers (UASes), which generate them.[1]:§8 A single user agent may act as both UAC and UAS for different transactions:[1]:p26 for example, a SIP phone is a user agent that will be a UAC when making a call, and a UAS when receiving one.

Additionally, some devices will act as both UAC and UAS for a single transaction; these are called Back-to-Back User Agents (B2BUAs).[1]:p20 SIP responses specify a three-digit integer response code, which is one of a number of defined codes that detail the status of the request. SIP responses also specify a "reason phrase", and a default reason phrase is defined with each response code.[1]:§7.2 These reason phrases can be varied, however, such as to provide additional information[1]:§21.4.18 or to provide the text in a different language.[1]:§20.3 1xx—Provisional Responses[edit] 100 Trying 180 Ringing 182 Queued. Open Source Sip: Clearspace: Open Source Sip. Yet another entrant joins mobile VoIP app market - FierceVoIP. WCell International, a Hong Kong-based VoIP calling platform for mobile devices, announced its application is now available for download on a variety of mobile operating systems.

The application currently is compatible with BlackBerry, Java, Windows Mobile and Symbian, among others, and it is pending approval by Apple for listing in the iPhone App Store. WCell, which has been bootstrapped with investment from its founders, said it can offer comparable or better voice call quality than its many competitors in the mobile VoIP applications world, while simultaneously delivering cost savings against leaders such as Skype.

It said it will attempt to differentiate from the likes of Skype, fring, Nimbuzz and Truphone by targeting retail handset sales. The company aims to have 10 million paying customers of the service by November, and it will have to rapidly expand and compete with all the other entrants in the space if it to reach its goal. For more:- see the Venture Beat article here. Rešitve | VoIP | Telefonija preko interneta. VoIP Gateway Je naprava (vmesnik), ki povezuje telefonsko okolje (analogne ali ISDN telefonske aparate, analogne ali ISDN hišne centrale, analogne ali ISND javne PSTN telefonske priključke, faksimile aparate) na Ethernet IP omrežje. Z vgrajeno VoIP tehnologijo pretvarja analogni govor v digitalne IP govorne pakete. Nekateri VoIP Gateway imajo vgrajeno funkcionalnost Gatekeeper, ki omogoča lokalno administriranje in upravljanje telefonskega prometa in lokalno izvajanje funkcij ToIP.

V primeru izpada centralnega Gatekeeprja oz Klicnega strežnika ali prekinitve povezave do njih, tak Gateway sam prevzame funkcije lokalnega Gatekeeperja. Pri ponovni vzpostavitvi delovanja centralnega Gatekeeperja oz Klicnega strežnika se te funkcije ponovno prenesejo na centralno napravo in VoIP Gateway izvaja le VoIP funkcije. V primeru izpada povezave na IP omrežje lahko preusmeri telefonske pozive na PSTN javno telefonsko omrežje in nazaj, ko se povezava na IP omrežje ponovno vzpostavi. IP telefon. TelWholesale.com - Home. eStara's 3 million VoIP users. eStara is claiming 3 million users and they've announced a positive Forrester Research report today. I've used the eStara web push-to-talk product a few years ago and it worked quite well (good voice quality) even back then. 3 million users has to make eStara the most "stealth" VoIP player I've ever run across.

Compare that with ~400,000 Vonage users and ~39 million Skype users, eStara isn't nearly the household name that either of these two VoIP players are. Of course, eStara has gone after the "boring" business VoIP market rather than the "chic" consumer market, so that could have something to do with it. (Side note: As I'm blogging this from my living room PC/TV a Vonage commercial just came on. What are the odds?) A new report from Forrester Research highlights the impact that eStara’s cross channel communication service has had for Dell Financial Services. eStara offers Push to Talk as a fully-hosted service through a variety of pricing models. Predictive Dialer and Hosted Call Center Systems - Five9, Inc. Whitepaper: VoIP Guide.