{
  "Signaling": {
    "RingingTimerSeconds": 20,
    "UseIPSec": true,
    "Preconditions": "Supported",
    "EarlyMediaNeedsHeader": false,
    "SipTimers": {
      "T4": 20000,
      "InviteResponseTimeout": 5000,
      "T2": 16000,
      "T1": 2000
    },
    "SupportPEarlyMediaHeader": false,
    "RingbackTimerSeconds": 20
  },
  "Internal": {
    "MediaInitTimeoutMilliseconds": 20000
  },
  "ConferenceCalling": {
    "conferenceServer": "sip:+7979@ims.avt.com",
    "SendConferenceSubscribeInNewDialog": true,
    "AlwaysSubscribeToConferenceEvents": false
  },
  "Media": {
    "RTCPIntervalSeconds": 5,
    "preferWideband": true,
    "ModeChangeCapability": 2,
    "EnableBandwidthSpecifiers": true,
    "PreferredAMRNBMode": 7,
    "PreferredAMRWBMode": 8,
    "IncludeSDPModeChangeCapability": true
  },
  "Voice": {
    "EnableVolteByDefault": true,
    "E911OverIMSSupported": false
  }
}