Calling functionality is working fine but the SendDTMF isn't working. Here is my minimal code that can help to understand the situation.
class AnswerCallViewController: UIViewController {
var call: Call!
var proxy_cfg: ProxyConfig!
let coreManager1 = LinphoneCoreManager()
var lc: Core?
let coreManager2 = LinphoneCoreManager2()
var mIterateTimer: Timer?
var cPtr: OpaquePointer?
@IBAction func btnsAppend(_ sender: UIButton) {
let digit1 = sender.currentTitle!
print("digit1", digit1)
let cchar = (sender.currentTitle!.cString(using: String.Encoding.utf8)?[0])!
do {
try call?.sendDtmf(dtmf: cchar)
} catch {
print("DTMF failed because \(error)")
}
}
It's should work but it's always return error. The error log is -
liblinphone-warning-linphone_call_send_dtmf(): invalid call, canceling DTMF
sendDtmf and Returns: -1 on error.
Other Information -
Linphone SDK - Version 5 (compiled with g729 codec.)
Xcode - Version 12.4 (12D4e)
Any help will be appreciated.
