We require a fully branded SIP client for iOS and Android and possibly Windows Phone. Ideally the client can be preconfigured with our server settings and possibly automatically provisioned with dediated username and password.
It should support all common codecs and possibly G729 subject to licensing. The main thing it must achieve is make and receive SIP calls and run in the background with access to contacts.
Hello, I read your requirement and understand [url removed, login to view] are experience IOS and Android App and Game developer. We have 5+ year [url removed, login to view] these [url removed, login to view] quote and time is placeholder,its change as per requirement. Some Mere