Q1: Yes. Call Signaling and Call Control are the same thing.Q2: No. You RTP flow will be as below.Calling device --> CUBE (SIP Gateway) --> Redsky SBC --> PSAP
1. Creating an Intrado route pattern alone in CER does not impact anything.2. Check out link below for Conventional ERL to Intrado ERL migrationhttps://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cer/10_0_1/english/administration/guide/CER0_BK_CA6631...