voip

问题 I have implemented the Conference Call using Sinch and it is working perfectly. Now my requirement is I should be able to add clients to the conference call. According to the Sinch docs I can make users to connect to the same conference room only when all the users use the same conference room name. What I am trying to achieve is to have one user create a conference room and add users to that room as he wishes. Can this be achieved , if so how? All answers are appreciated 回答1: Yes you can use

问题 I want play sound during call, so receiver will able to listen that sound. Suppose, I am in office, And I want play sound of traffic during Twilio Call. Is this possible using Twilio in iOS ? If I select button to play traffic sound, then only receiver can able to listen the same. If receiver select to play sound of Party, then only caller can listen that sound, not both the parties. If yes, What are the possible ways to implement the same. 回答1: Twilio developer evangelist here. You could use

问题 Web browser plug-ins such as Flash already provide VoIP functionality in a web browser, but is it possible to have browser VoIP without any plug-ins? Ericsson Labs has posted information using the device element to allow for microphone input. This, in addition with WebSockets could be used to implement VoIP. However, the device element is not implemented in any web browser yet. 回答1: No there isn't but the device element will likely be the way in the future, as you mentioned. I don't think it

问题 I'm developing a SIP mobile softphone, customer needs a complete hiding of SIP messages from softphones to SIP servers as VOIP calls are regionally prohibited, however using TLS connection was not sufficient since the message headers are easily recognized as a SIP message. What are the best common alternative? what about openvpn, IPSec tunneling? 回答1: Transmitting SIP over TLS means the SIP headers will only be viewable if someone is able to compromise your TLS keys, i.e. it's highly unlikely

问题 I've upload my app on TestFlight and trying to make voice call using twilio and it's throwing Error - 52134 Invalid APNs device token . I've been reading a lot of tutorials on fixing it but despite all my effort I've been able to fix. In sandbox it worked fine though. I've done followings: 1) Created a new .certSigningRequest from keychain access 2) Generated new VoIP Services Certificate using above on https://developer.apple.com/account/ios/certificate/distribution/create 3) Added

问题 I want to encrypt voice calls on the fly. so which programming language should be preferred for symbian os. Are any API available for this purpose. which channel could be preferably used? 回答1: Have a look at http://www.developer.nokia.com/Community/Wiki/How_do_I_start_programming_for_Symbian_OS%3F about the different possibilities (programming language wise). BTW: A good programmer can write faster code in Visual Basic than a bad programmer in Assembler. 来源： https://stackoverflow.com

问题 Im trying to send VoIP notifications via PushKit, but in Production(Distribution) environment, I get "Invalid Token" from server. everything works fine in development env with same certificate and url: ssl://gateway.sandbox.push.apple.com with port: 2195 but when i change the url to: ssl://gateway.push.apple.com , I get "Invalid Token" error with no extra data 回答1: Looks like you are using same Voip device token generated by Client in sandbox environment for both sandbox as well as production

问题 I am developing VOIP app using linphone IOS/Android library. Basically I used OpenH264 video codec. When call is answered, both side saw black screen. After long time, both size can see the video each other. When I see the log, there are many packets loss so that First frame can not be decoded. At LinphoneCallStreamsRunning, I called FIR (linphone_call_send_vfu_request) request but not helped. Is there any config for OpenH264 video codec? I want to see the video as soon as accept call. Thank

问题 I have developed an app which does app to phone calling using Sinch framework. Calling works fine but the issue is I see a 4 digit number on receiver's phone but I would like receiver to see the registered number of caller. So I would like to set caller id or something like that for this. I tried to google it but I was not able to find any solution for that. Since app to app calling is having api to set caller id but I'm looking for a solution to set caller id for Sinch app to phone calling.

问题 I am using Twilio iOS SDK. The problem i am facing is that when i make an outgoing call and the called party disconnects, I am not receiving any delegate callbacks. I have implemented the TCConnectionDelegate method connectionDidDisconnect . It is never invoked in this case. On the other hand i can successfully disconnect calls from the calling device. I have tested using their sample app "Basic Phone" . The same problem exists in that app too. 回答1: After contacting Twilio support itself on