48 68 sequencing 69 50 Multipart MIME 50 76 timers example 49 89 Messages triggered events 31 77 35 77 34 78 34 message processing 34 78 31 77 31 76 35 sequencing rules 33 78 33 77 32 78 23 76 29 Multi-part MIME 36 example 29 91 29 25 N 30 25 20 25 NAT traversal aid 25 46 35 82 28 47 28 47 28 46 20 48 30 47 36 47 30 46 28 47 23 47 26 48 27 46 26 15 27 27 O 26 27 30 20 18 Contact header field ( 22, 22) Path header field ( 21, 22) P Record-Route header field ( 21, 22) Request-URI header field ( 22, 22) header field Route header field ( 21, 22, 22) 78 20 36 22 36 20 96 24 30 Ms-Call-Info header field Phone number resolution 78 55 35 56 35 56 28 triggered events 69 56 28 initialization 69 56 28 57 69 message processing
48 sequencing 50 50 timers 49 Messages 31 35 34 34 34 31 31 35 33 33 32 23 29 36 29 29 25 30 25 25 25 35 28 28 28 20 30 36 30 28 23 26 27 26 27 27 26 27 20 Contact header field ( 22, 22) Path header field ( 21, 22) Record-Route header field ( 21, 22) Request-URI header field ( 22, 22) Route header field ( 21, 22, 22) 20 22 20 24 Ms-Call-Info header field 78 35 35 28 69 28 69 28 69 68 69 Multipart MIME 76 example 89 triggered events 77 77 78 message processing 78 77 76 sequencing rules 78 77 78 76 Multi-part MIME example 91 N 20 NAT traversal aid 46 82 47 47 46 48 47 47 46 47 47 48 46 15 O 30 18 P header field 78 36 36 96 30 Phone number resolution 55 56 56 triggered events 56 initialization 56 57 message processing