symmetry = default (bidirectional symmetric)
user info. layer 1 protocol id = 0x2
(u-law speech)
Called Party Number: 2208000
Mandatory Parameter: 4 (Called party number)
Pointer to Parameter: 6
Parameter length: 6
1... .... = Odd/even indicator: odd number of address signals
.000 0001 = Nature of address indicator: subscriber number (national
use) (1)
0... .... = INN indicator: routing to internal network number allowed
.001 .... = Numbering plan indicator: ISDN (Telephony) numbering plan
(1)
Called Party Number: 2208000
.... 0010 = Address signal digit: 2 (2)
0010 .... = Address signal digit: 2 (2)
.... 0000 = Address signal digit: 0 (0)
1000 .... = Address signal digit: 8 (8)
.... 0000 = Address signal digit: 0 (0)
0000 .... = Address signal digit: 0 (0)
.... 0000 = Address signal digit: 0 (0)
Pointer to start of optional part: 12
Calling Party Number: 8152207000
Optional Parameter: 10 (Calling party number)
Parameter length: 7
0... .... = Odd/even indicator: even number of address signals
.000 0011 = Nature of address indicator: national (significant) number
(3)
0... .... = NI indicator: complete
.001 .... = Numbering plan indicator: ISDN (Telephony) numbering plan
(1)
.... 00.. = Address presentation restricted indicator: presentation
allowed (0)
.... ..11 = Screening indicator: network provided (3)
Calling Party Number: 8152207000
.... 1000 = Address signal digit: 8 (8)
0001 .... = Address signal digit: 1 (1)
.... 0101 = Address signal digit: 5 (5)
0010 .... = Address signal digit: 2 (2)
.... 0010 = Address signal digit: 2 (2)
0000 .... = Address signal digit: 0 (0)
.... 0111 = Address signal digit: 7 (7)
0000 .... = Address signal digit: 0 (0)
.... 0000 = Address signal digit: 0 (0)
0000 .... = Address signal digit: 0 (0)
Parameter Type unknown/reserved (7 Bytes)
Optional Parameter: 235 (unknown)
Parameter length: 7
Parameter Type unknown/reserved (3 Bytes)
Optional Parameter: 196 (unknown)
Parameter length: 3
End of optional parameters (0)
SIP Message Examples
Call Flow
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Lucent Technologies 235-200-118
Issue 3.02B, March 2007