SIP URIs
{example}.sip.ashburn.twilio.com(North America Virginia){example}.sip.umatilla.twilio.com(North America Oregon){example}.sip.dublin.twilio.com(Europe Ireland){example}.sip.frankfurt.twilio.com(Europe Frankfurt){example}.sip.singapore.twilio.com(Asia Pacific Singapore){example}.sip.tokyo.twilio.com(Asia Pacific Tokyo){example}.sip.sao-paulo.twilio.com(South America São Paulo){example}.sip.sydney.twilio.com(Asia Pacific Sydney)
{example}.sip.us1.twilio.com(North America Virginia){example}.sip.us2.twilio.com(North America Oregon){example}.sip.ie1.twilio.com(Europe Ireland){example}.sip.de1.twilio.com(Europe Frankfurt){example}.sip.sg1.twilio.com(Asia Pacific Singapore){example}.sip.jp1.twilio.com(Asia Pacific Tokyo){example}.sip.br1.twilio.com(South America São Paulo){example}.sip.au1.twilio.com(Asia Pacific Sydney)