I'm not sure whether this is me, and I'm missing some setting. On all Android phones I've used, when calling a number, when the call is going through, the dialling tone to the called number is repeated in the calling phone, thereby indicating that all is going as it should. However, with my Cosmo, on dialling a number, there is total silence until the called phone is picked up, or the call ends, or, presumably, whatever else might happen, like going to voice mail, etc. Silence may be golden, but not in this instance.