RFC 2885
Megaco Protocol version 0.8
ANNEX C TAGS FOR MEDIA STREAM PROPERTIES (NORMATIVE)
Parameters for Local descriptors and Remote descriptors are specified as tag-value pairs if binary encoding is used for the protocol. This annex contains the property names (PropertyID), the tags (Property Tag), type of the property (Type) and the values (Value).Values presented in the Value field when the field contains references shall be regarded as "information". The reference contains the normative values. If a value field does not contain a reference then the values in that field can be considered as "normative". Tags are given as hexadecimal numbers in this annex. When setting the value of a property, a MGC may underspecify the value according to one of the mechanisms specified in section 7.1.1. For type "enumeration" the value is represented by the value in brackets, e.g., Send(0), Receive(1).C.1 General Media Attributes
PropertyID Property Type Value Tag Media 1001 Enumeration Audio(0), Video(1), Data(2), Transmission mode 1002 Enumeration Send(0), Receive(1), Send&Receive(2) Number of Channels 1003 Unsigned 0-255 Integer Sampling rate 1004 Unsigned 0-2^32 Integer Bitrate 1005 Integer (0..4294967295) Note - units of 100 bit/s
ACodec 1006 Octet String Audio Codec Type:
Reference: ITU-T Rec. Q.765 - Application transport mechanism.
Non-ITU codecs are defined with the appropriate standards
organisation under a defined Organizational Identifier.
Samplepp 1007 Unsigned Maximum samples or
Integer frames per packet: 0-
65535
Silencesupp 1008 BOOLEAN Silence Suppression:
True/false
Encrypttype 1009 Octet string Ref.: rec. H.245
Encryptkey 100A Octet string Encryption key
SIZE(0..65535)
Ref.: rec. H.235
Echocanc 100B Enumeration Echo Canceller:
Off(0), G.165(1),
G168(2)
Gain 100C Unsigned Gain in db: 0-65535
Integer
Jitterbuff 100D Unsigned Jitter buffer size in
Integer ms: 0-65535
PropDelay 100E Unsigned Propagation Delay:
Integer 0..65535
Maximum propagation delay in milliseconds for the bearer
connection between two media gateways. The maximum delay will be
dependent on the bearer technology.
RTPpayload 100F integer Payload type in RTP
Profile for Audio and
Video Conferences
with Minimal Control
Ref.: RFC 1890
C.2 Mux Properties
PropertyID Property Type Value
Tag
H.221 2001 Octet Ref.: rec. H.245,
string H222LogicalChannelParameters
H223 2002 Octet Ref.: rec. H.245,
string H223LogicalChannelParameters
V76 2003 Octet Ref.: rec. H.245,
String V76LogicalChannelParameters
H2250 2004 Octet Ref.: rec. H.245,
String H2250LogicalChannelParameters
C.3 General bearer properties
PropertyID Property Type Value
Tag
Mediatx 3001 Enumeration Media Transport Type:
TDM Circuit(0), ATM(1),
FR(2), Ipv4(3), Ipv6(4),
_
BIR 3002 4 OCTET Value depends on
transport technology
NSAP 3003 1-20 OCTETS See NSAP
Reference: ITU X.213 Annex A
C.4 General ATM properties
PropertyID Property Type Value
Tag
AESA 4001 20 OCTETS ATM End System Address
VPVC 4002 2 x 16 bit VPC/VCI
integer
SC 4003 4 bits Service Category
Reference: ITU Recommendation Q.2931 (1995)
BCOB 4004 5 bit integer Broadband Bearer Class
Reference: ITU Recommendation Q.2961.2 (06/97)
BBTC 4005 octet Broadband Transfer
Capability
Reference: ITU Recommendation Q.2961 (10/95)
ATC 4006 Enumeration I.371 ATM Traffic
Capability
Reference: ITU Recommendation I.371:
DBR(0), SBR1(1), SBR2(2), SBR(3), ABT/IT(4), ABT/DT(5), ABR(6)
STC 4007 2 bits Susceptibility to
clipping
Reference: ITU Recommendation Q.2931 (1995)
00 Susceptible
01 Not-susceptible
UPCC 4008 2 bits User Plane Connection
configuration:
Reference: ITU Recommendation Q.2931 (1995)
00 Pt-to-pt,
01 Pt-to-mpt
PCR0 4009 24 bit Peak Cell Rate (For
integer CLP=0)
Reference: ITU Recommendation I.371
SCR0 400A 24 bit Sustainable Cell Rate
integer (For CLP=0)
Reference: ITU Recommendation I.371
MBS0 400B 24 bit Maximum Burst Size (For
integer CLP=0)
Reference: ITU Recommendation I.371
PCR1 400C 24 bit Peak Cell Rate (For
integer CLP=0+1)
Reference: ITU Recommendation I.371
SCR2 400D 24 bit Sustainable Cell Rate
integer (For CLP=0+1)
Reference: ITU Recommendation I.371
MBS3 400E 24 bit Maximum Burst Size (For
integer CLP=0+1)
Reference: ITU Recommendation I.371
BEI 400F Boolean Best Effort Indicator
TI 4010 Boolean Tagging
FD 4011 Boolean Frame Discard
FCDV 4012 24 bit Forward P-P CDV
integer
BCDV 4013 24 bit Backward P-P CDV
integer
FCLR0 4014 8 bit integer Forward Cell Loss Ratio
(For CLP=0)
BCLR0 4015 8 bit integer Backward P-P Cell Loss
Ratio (For CLP=0)
FCLR1 4016 8 bit integer Forward Cell Loss Ratio
BCLR1 4017 8 bit integer Backward P-P Cell Loss
Ratio (For CLP=0+1)
FCDV 4018 24 bit Forward Cell Delay
integer Variation
BCDV 4019 24 bit Backward Cell Delay
integer Variation
FACDV 401A 24 bit Forward Acceptable P-P-P
integer CDV
BACDV 401B 24 bit Backward Acceptable P-P
integer CDV
FCCDV 401C 24 bit Forward Cumulative P-P
integer CDV
BCCDV 401D 24 bit Backward Cumulative P-P
integer CDV
FCLR 401E 8 bit integer Acceptable Forward Cell
Loss Ratio
BCLR 401F 8 bit integer Acceptable Backward Cell
Loss Ratio
EETD 4020 16 bit End-to-end transit delay
integer
Mediatx (See 4021 AAL Type
General
Properties)
Reference: ITU Recommendation Q.2931 (1995)
QosClass 4022 Integer 0-4 Qos Class
Reference: ITU Recommendation Q.2931 (1995)
QoS Parameter Application:
Qos Class0 QoS ApplicationBest Effort
Parameter Unspecified
0 Unspecified Best EffortConstant Bit rate
Specified circuit emulation
1 Specified Constant Bit rate circuit
Specified emulationVariable bit rate
video and audio
2 Specified Variable bit rate video and
Specified audioConnection-oriented data
3 Specified Connection-oriented
Specified dataConnectionless data
4 Specified Connectionless data
AALtype 4023 1 OCTET AAL Type
Reference: ITU Recommendation Q.2931 (1995)
00000000 AAL for voice
00000001 AAL type 1
00000010 AAL type 2
00000011 AAL type 3/4
00000101 AAL type 5
00010000 user defined AAL
C.5 Frame Relay
PropertyID Property Type Value
Tag
DLCI 5001 Unsigned Integer Data link connection
id
CID 5002 Unsigned Integer sub-channel id.
SID/Noiselevel 5003 Unsigned Integer silence insertion
descriptor
Primary Payload 5004 Unsigned Integer Primary Payload Type
type
Covers FAX and codecs
C.6 IP
PropertyID Property Type Value Tag IPv4 6001 32 BITS Ipv4Address: Ipv4Address Reference: IETF RFC791 IPv6 6002 128 BITS IPv6 Address: Reference: IETF RFC2460 Port 6003 unsigned integer 0-65535 Porttype 6004 enumerated TCP(0), UDP(1), SCTP(2)C.7 ATM AAL2
PropertyID Property Type Value Tag AESA 7001 20 OCTETS AAL2 service endpoint address as defined in Reference: ITU Recommendation Q.2630.1 ESEA NSEA BIR See C.3 4 OCTETS Served user generated reference as defined in Reference: ITU Recommendation Q.2630.1 SUGR ALC 7002 12 OCTETS AAL2 link characteristics as defined in Reference: ITU Recommendation Q.2630.1 max/average CPS-SDU bitrate, max/average CPS-SDU size SSCS 7003 I.366.2: Service audio (8 OCTETS) specific multirate (3 OCTETS) convergence or I.366.1: sublayer SAR-assured (14 OCTETS)/ information unassured (7 OCTETS) as defined in Reference: Q.2630.1 and used in I.366.1 and I.366.2 I.366.2: audio/multirate
I.366.1: SAR-assured/unassured
SUT 7004 1..254 octets Served user transport
parameter
as defined in Reference: ITU Recommendation Q.2630.1
TCI 7005 BOOLEAN Test connection
indicator
as defined in Reference: ITU Recommendation Q.2630.1
Timer_CU 7006 32 bit integer Timer-CU: Milliseconds
to hold partially
filled cell before
sending.
MaxCPSSDU 7007 8 bit integer Maximum Common Part
Sublayer Service Data
Unit
Ref.: rec. Q.2630.1
SCLP 7008 Boolean Set Cell Local
PriorityLP bit:
True if CLP bit is to
be set
EETR 7009 Boolean Timing Requirements
Reference: ITU Recommendation Q.2931 (1995)
End to End Timing Required:
In broadband bearer capability
CID 700A 8 bits subchannel id, 0-255
Ref.: rec. I.363.2 (09/97)
C.8 ATM AAL1
PropertyID Property Type Value
Tag
BIR See GIT (Generic
Table Identifier Transport) C.3
C.3
Ref.: Recommendation Q.2941.1 (09/97)
AAL1ST 8001 1 OCTET AAL1 Subtype:
Reference: ITU Recommendation Q.2931 (1995)
00000000 Null
00000001 voiceband signal transport on 64kbit/s
00000010 circuit transport
00000100 high-quality audio signal transport
00000101 video signal transport
CBRR 8002 1 OCTET CBR Rate
Reference: ITU Recommendation Q.2931 (1995)
00000001 64 kbit/s
00000100 1544 kbit/s
00000101 6312 kbit/s
00000110 32064 kbit/s
00000111 44736 kbit/s
00001000 97728 kbit/s
00010000 2048 kbit/s
00010001 8448 kbit/s
00010010 34368 kbit/s
00010011 139264 kbit/s
01000000 n x 64 kbit/s
01000001 n * 8 kbit/s
MULT See Multiplier, or n x
Table 64k/8k/300
C.9
Reference: ITU Recommendation Q.2931 (1995)
SCRI 8003 1 OCTECT Source Clock Frequency
Recovery Method
Reference: ITU Recommendation Q.2931 (1995)
00000000 NULL
00000001 SRTS
00000010 ACM
ECM 8004 1 OCTECT Error Correction
Method
Reference: ITU Recommendation Q.2931 (1995)
00000000 Null
00000001 FEC-LOSS
00000010 FEC-DELAY
SDTB 8005 16 bit integer Structured Data
Transfer Blocksize
Reference: ITU Recommendation I.363.1
Block size of SDT CBR service
PFCI 8006 8 bit integer Partially filled cells
indentifier
Reference: ITU Recommendation I.363.1
1-47
EETR See See Table C.7 See Table C.7
Table
C.7
C.9 Bearer Capabilities
PropertyID Property Type Value
Tag
TMR 9001 1 OCTET Transmission Medium
Requirement (Q.763)
Reference: ITU Recommendation Q.763(09/97)
Bit 8 7 6 5 4 3 2 1
00000000 - speech
00000001 - spare
00000010 - 64 kbit/s unrestricted
00000011 - 3.1 kHz audio
00000100 - reserved for alternate speech (service 2)/64 kbit/s
unrestricted (service 1)
00000101 - reserved for alternate 64 kbit/s unrestricted (service
1)/speech (service 2)
00000110 - 64 kbit/s preferred
00000111 - 2 x 64 kbit/s unrestricted
00001000 - 384 kbit/s unrestricted
00001001 - 1536 kbit/s unrestricted
00001010 - 1920 kbit/s unrestricted
00001011 through 00001111- spare
00010000 - 3 x 64 kbit/s unrestricted
00010001 - 4 x 64 kbit/s unrestricted
00010010 - 5 x 64 kbit/s unrestricted
00010011 spare
00010100 - 7 x 64 kbit/s unrestricted
00010101 - 8 x 64 kbit/s unrestricted
00010110 - 9 x 64 kbit/s unrestricted
00010111 - 10 x 64 kbit/s unrestricted
00011000 - 11 x 64 kbit/s unrestricted
00011001 - 12 x 64 kbit/s unrestricted
00011010 - 13 x 64 kbit/s unrestricted
00011011 - 14 x 64 kbit/s unrestricted
00011100 - 15 x 64 kbit/s unrestricted
00011101 - 16 x 64 kbit/s unrestricted
00011110 - 17 x 64 kbit/s unrestricted
00011111 - 18 x 64 kbit/s unrestricted
00100000 - 19 x 64 kbit/s unrestricted
00100001 - 20 x 64 kbit/s unrestricted
00100010 - 21 x 64 kbit/s unrestricted
00100011 - 22 x 64 kbit/s unrestricted
00100100 - 23x 64 kbit/s unrestricted
00100101 - spare
00100110 - 25 x 64 kbit/s unrestricted
00100111 - 26 x 64 kbit/s unrestricted
00101000 - 27 x 64 kbit/s unrestricted
00101001 - 28 x 64 kbit/s unrestricted
00101010 - 29 x 64 kbit/s unrestricted
00101011 through 11111111 Spare
TMRSR 9002 1 OCTET Transmission Medium
Requirement Subrate
0 - unspecified
1 - 8kbit/s
2 - 16kbit/s
3 - 32kbit/s
Contcheck 9003 BOOLEAN Continuity Check
Reference: ITU Recommendation Q.763(09/97)
0 - Not required on this circuit
1 - Required on this circuit
ITC 9004 5 BITS Information Transfer
Capability
Reference: ITU Recommendation Q.763(09/97)
Bits 5 4 3 2 1
00000 - Speech
01000 -Unrestricted digital information
01001- Restricted digital information
10000 3.1 kHz audio
10001 - Unrestricted digital information with tones/announcements
(Note 2)
11000 -Video
All other values are reserved.
TransMode 9005 2 BITS Transfer Mode
Reference: ITU Recommendation Q.931 (1998)
Bit 2 1
00 - Circuit mode
10 - Packet mode
TransRate 9006 5 BITS Transfer Rate
Reference: ITU Recommendation Q.931 (1998)
Bit 5 4 3 2 1
00000 - This code shall be used for packet mode calls
10000 - 64 kbit/s
10001 - 2 x 64 kbit/s
10011 -384 kbit/s
10101 -1536 kbit/s
10111 -1920 kbit/s
11000 - Multirate (64 kbit/s base rate)
MULT 9007 7 BITS Rate Multiplier
Reference: ITU Recommendation Q.931 (1998)
Any value from 2 to n (maximum number of B-channels)
USI 9008 5 BITS User Information Layer
1 Protocol
Reference: ITU Recommendation Q.931 (1998)
Bits 5 4 3 2 1
00001 - CCITT standardized rate adaption V.110 and X.30.
00010 - Recommendation G.711 u-law
00011 - Recommendation G.711 A-law
00100 - Recommendation G.721 32 kbit/s ADPCM and Recommendation
I.460.
00101 - Recommendations H.221 and H.242
00110 - Recommendations H.223 and H.245
00111 - Non-ITU-T standardized rate adaption.
01000 - ITU-T standardized rate adaption V.120.
01001 - CCITT standardized rate adaption X.31 HDLC flag stuffing.
All other values are reserved.
syncasync 9009 BOOLEAN Synchronous/
Asynchronous
Reference: ITU Recommendation Q.931 (1998)
0 - Synchronous data
1 - Asynchronous data
negotiation 900A BOOLEAN Negotiation
Reference: ITU Recommendation Q.931 (1998)
0 - In-band negotiation possible
1 - In-band negotiation not possible
Userrate 900B 5 BITS User Rate
Reference: ITU Recommendation Q.931 (1998)
Bits 5 4 3 2 1
00000 - Rate is indicated by E-bits specified in Recommendation
I.460 or may be negotiated in-band
00001 - 0.6 kbit/s Recommendations V.6 and X.1
00010 - 1.2 kbit/s Recommendation V.6
00011 - 2.4 kbit/s Recommendations V.6 and X.1
00100 - 3.6 kbit/s Recommendation V.6
00101 - 4.8 kbit/s Recommendations V.6 and X.1
00110 - 7.2 kbit/s RecommendationV.6
00111 - 8 kbit/s Recommendation I.460
01000 - 9.6 kbit/s Recommendations V.6 and X.1
01001 - 14.4 kbit/s Recommendation V.6
01010 - 16 kbit/s Recommendation I.460
01011 - 19.2 kbit/s Recommendation V.6
01100 - 32 kbit/s Recommendation I.460
01101 - 38.4 kbit/s Recommendation V.110
01110 - 48 kbit/s Recommendations V.6 and X.1
01111 - 56 kbit/s Recommendation V.6
10010 - 57.6 kbit/s Recommendation V.14 extended
10011 - 28.8 kbit/s Recommendation V.110
10100 - 24 kbit/s Recommendation V.110
10101 - 0.1345 kbit/s Recommendation X.1
10110 - 0.100 kbit/s Recommendation X.1
10111 - 0.075/1.2 kbit/s Recommendations V.6 and X.1
11000 - 1.2/0.075 kbit/s Recommendations V.6 and X.1
11001 - 0.050 kbit/s Recommendations V.6 and X.1
11010 - 0.075 kbit/s Recommendations V.6 and X.1
11011 - 0.110 kbit/s Recommendations V.6 and X.1
11100 - 0.150 kbit/s Recommendations V.6 and X.1
11101 - 0.200 kbit/s Recommendations V.6 and X.1
11110 - 0.300 kbit/s Recommendations V.6 and X.1
11111 - 12 kbit/s Recommendation V.6
All other values are reserved.
INTRATE 900C 2 BITS Intermediate Rate
Reference: ITU Recommendation Q.931 (1998)
Bit 2 1
00 - Not used
01 - 8 kbit/s
10 - 16 kbit/s
11 - 32 kbit/s
nictx 900D BOOLEAN Network Independent
Clock (NIC) on
transmission
Reference: ITU Recommendation Q.931 (1998)
0 - Not required to send data with network independent clock
1 - Required to send data with network independent clock
nicrx 900E BOOLEAN Network independent
clock (NIC) on
reception
Reference: ITU Recommendation Q.931 (1998)
0 - Cannot accept data with network independent clock (i.e.
sender does not support this optional procedure)
1 - Can accept data with network independent clock (i.e. sender
does support this optional procedure)
flowconttx 900F BOOLEAN Flow Control on
transmission (Tx)
Reference: ITU Recommendation Q.931 (1998)
0 - Not required to send data with flow control mechanism
1 - Required to send data with flow control mechanism
flowcontrx 9010 BOOLEAN Flow control on
reception (Rx)
Reference: ITU Recommendation Q.931 (1998)
0 - Cannot accept data with flow control mechanism (i.e. sender
does not support this optional procedure)
1 - Can accept data with flow control mechanism (i.e. sender does
support this optional procedure)
rateadapthdr 9011 BOOLEAN Rate adaption
header/no header
Reference: ITU Recommendation Q.931 (1998)
0 - Rate adaption header not included
1 - Rate adaption header included
multiframe 9012 BOOLEAN Multiple frame
establishment support
in data link
Reference: ITU Recommendation Q.931 (1998)
0 - Multiple frame establishment not supported. Only UI frames
allowed.
1 - Multiple frame establishment supported
OPMODE 9013 BOOLEAN Mode of operation
Reference: ITU Recommendation Q.931 (1998)
0 Bit transparent mode of operation
1 Protocol sensitive mode of operation
llidnegot 9014 BOOLEAN Logical link
identifier negotiation
Reference: ITU Recommendation Q.931 (1998)
0 Default, LLI = 256 only
1 Full protocol negotiation
assign 9015 BOOLEAN Assignor/assignee
Reference: ITU Recommendation Q.931 (1998)
0 Message originator is "Default assignee"
1 Message originator is "Assignor only"
inbandneg 9016 BOOLEAN In-band/out-band
negotiation
Reference: ITU Recommendation Q.931 (1998)
0- Negotiation is done with USER INFORMATION messages on a
temporary signalling connection
1- Negotiation is done in-band using logical link zero
stopbits 9017 2 BITS Number of stop bits
Reference: ITU Recommendation Q.931 (1998)
Bits 2 1
00 - Not used
01 - 1 bit
10 - 1.5 bits
11 - 2 bits
databits 9018 2 BIT Number of data bits
excluding parity Bit
if present
Reference: ITU Recommendation Q.931 (1998)
Bit 2 1
00 - Not used
01 - 5 bits
10 - 7 bits
11 - 8 bits
parity 9019 3 BIT Parity information
Reference: ITU Recommendation Q.931 (1998)
Bit 3 2 1
000 - Odd
010 - Even
011 -None
100 - Forced to 0
101 - Forced to 1
All other values are reserved.
duplexmode 901A BOOLEAN Mode duplex
Reference: ITU Recommendation Q.931 (1998)
0 - Half duplex
1 - Full duplex
modem 901B 6 BIT Modem Type
Reference: ITU Recommendation Q.931 (1998)
Bits 6 5 4 3 2 1
00000 through 000101 National Use
010001 - Recommendation V.21
010010 - Recommendation V.22
010011 - Recommendation V.22 bis
010100 - Recommendation V.23
010101 - Recommendation V.26
011001 - Recommendation V.26 bis
010111 -Recommendation V.26 ter
011000 - RecommendationV.27
011001 - Recommendation V.27 bis
011010 - Recommendation V.27 ter
011011 - Recommendation V.29
011101 - Recommendation V.32
011110 - Recommendation V.34
100000 through 101111 National Use
110000 through 111111 User Specified
layer2prot 901C 5 BIT User information layer
2 protocol
Reference: ITU Recommendation Q.931 (1998)
Bit 5 4 3 2 1
00010 - Recommendation Q.921/I.441 [3]
00110 - Recommendation X.25 [5], link layer
01100 - LAN logical link control (ISO/IEC 8802-2)
All other values are reserved.
layer3prot 901D 5 BIT User information layer
3 protocol
Reference: ITU Recommendation Q.931 (1998)
Bit 5 4 3 2 1
00010 - Recommendation Q.931/I.451
00110 - Recommendation X.25, packet layer
01011 - ISO/IEC TR 9577 (Protocol identification in the network
layer)
All other values are reserved.
addlayer3prot 901E OCTET Additional User
Information layer 3
protocol
Reference: ITU Recommendation Q.931 (1998)
Bits 4321 4321
1100 1100 - Internet Protocol (RFC 791) (ISO/IEC TR 9577)
1100 1111 - Point-to-point Protocol (RFC 1548)
DialledN 901F 30 OCTETS Dialled Number
DiallingN 9020 30 OCTETS Dialling Number
ECHOCI 9021 Enumeration Echo Control
Information
echo canceler off (0), incoming echo canceler on (1), outgoing
echo canceler on (2), incoming and outgoing echo canceler on (3)
NCI 9022 1 OCTET Nature of Connection
Indicators
Reference: ITU Recommendation Q.763
Bits 8 7 6 5 4 3 2 1
Bits 2 1 Satellite Indicator
0 0 no satellite circuit in the connection
0 1 one satellite circuit in the connection
1 0 two satellite circuits in the connection
1 1 spare
Bits 4 3 Continuity check indicator
0 0 continuity check not required
0 1 continuity check required on this circuit
1 0 continuity check performed on a previous circuit
1 1 spare
Bits 5 Echo control device indicator
0 outgoing echo control device not included
1 outgoing echo control device included
Bits 8 7 6 Spare
C.10 AAL5 Properties
PropertyID Property Type Value
Tag
FMSDU A001 32 bit integer Forward Maximum CPCS-
SDU Size:
Reference: ITU Recommendation Q.2931 (1995)
Maximum CPCS-SDU size sent in the direction from the calling user
to the called user.
BMSDU A002 32 bit integer Backwards Maximum
CPCS-SDU Size
Reference: ITU Recommendation Q.2931 (1995)
Maximum CPCS-SDU size sent in the direction from the called user
to the calling user.
SSCS See See table C.7 See table C.7
table
C.7
Additional values:
VPI/VCI
SC See See Table C.4 See table C.4
Table
C.4
C.11 SDP Equivalents
PropertyID Property Type Value Tag SDP_V B001 STRING Protocol Version SDP_O B002 STRING Owner/creator and session ID SDP_S B003 STRING Sesson name SDP_I B004 STRING Session identifier SDP_U B005 STRING URI of descriptor SDC_E B006 STRING email address SDP_P B007 STRING phone number SDP_C B008 STRING Connection information SDP_B B009 STRING Bandwidth Information SDP_Z B00A STRING time zone adjustment SDP_K B00B STRING Encryption Key SDP_A B00C STRING Zero or more session attributes SDP_T B00D STRING Active Session Time SDP_R B00E STRING Zero or more repeat times Reference in all cases: IETF RFC2327, "Session Description Protocol"C.12 H.245
PropertyID Property Type Value Tag OLC C001 octet string The value of H.245 OpenLogicalChannel structure.
OLCack C002 octet string The value of H.245
OpenLogicalChannelAck
structure.
OLCcnf C003 octet string The value of H.245
OpenLogicalChannelConfirm
structure.
OLCrej C004 octet string The value of H.245
OpenLogicalChannelReject
structure.
CLC C005 octet string The value of H.245
CloseLogicalChannel
structure.
CLCack C006 octet string The value of H.245
CloseLogicalChannelAck
structure.
Reference in all cases: ITU-T Recommendation H.245
(page 125 continued on part 6)
