private HashMap<String, String> buildParams() { HashMap<String, String> params = new HashMap<String, String>(); params.put("sipServerIp", serverIp); params.put("userName", "steand"); params.put("userPwd", "steand"); String onHoldSoundPath = Utils.getResourcePathByAssetCopy(this.getApplicationContext(), "", "test_hold.wav"); Log.d(TAG, "OnHoldSoundPath:" + onHoldSoundPath); params.put("onHoldSound", onHoldSoundPath); // params.put("sipServerPort","5060"); // optional: default 5060 return params; }