ASTPP Team delighted to announce the first ever Mobile SIP Dialer which is integrated with ASTPP. ASTPP Dialer is a brand new Mobile SIP Dialer launched by our team. Its a complete SIP Softphone which allows you to register your SIP account on any SIP server, specially ASTPP server. Download: ASTPP Dialer is available freely in Google play store: Please do not forget to share your review in play store.