0x01EA VoIP Terminal Capabilities

The Resource Attribute Query message is used to query an IP endpoint’s terminal capabilities using this TLV. The report returned is based on the resource profile assigned to the module.

Important! The VoIP Terminal Capabilities can be queried by addressing either the IP Address AIB or Extended Span/Channel AIB embedded within the Address Element TLV.

Used in:
Resource Attribute Query message

Byte

Description

0, 1

Tag VoIP Resource Profile Assign (0x01EA)

2, 3

Length Variable

4

Data [0] VoIP Profile ID
0x00 VDAC-ONE

0x01 IP Network Interface Series 2 - G.711 Only

0x02 IP Network Interface Series 2 - LBR + T.38

0x03 IP Network Interface Series 2 - LBR + G.728 + T.38

5

Data [1] Echo Canceler Tail Length (in ms)

6, 7

Data [2] MSB Jitter Buffer Length (in ms)

Data [3] LSB Jitter Buffer Length (in ms)

8

Data [4] Silent Suppression Support (bitmask)
0x00 No Support

0x01 Generic VDAC Support

0x02 G.723.1 Annex A Support

0x03 G.729 Annex B Support

9

Data [5] Fax Relay Supported (bitmask)
0x00 No Support

0x01 Support using T.38

11

Data [6] Modem Relay Supported (bitmask)
0x00 No Support

12

Data [7] Digit Relay Support (bitmask)
0x00 No Support

0x01 Support using RFC 2833

0x03 Support using RFC 2833 and Payload Type
Dynamically Configurable (IP Network Interface
Series 2 only)

13

Data [8] RTP Redundancy Support (bitmask)
0x00 No Support

0x01 Support using RFC 2198

0x03 Support using RFC 2198 and Payload Type
Dynamically Configurable (IP Network Interface
Series 2 only)

14

Data [9] Number of Coders Supported (bitmask)

15

Vocoder [1] Payload Type

16

Vocoder [1] Basic Packet Rate (in ms)

17

Vocoder [1] Maximum Packet Rate (multiples of Basic Rate)

...

...

...

...

14+n*3

Vocoder [n] Payload Type

Vocoder [n] Basic Packet Rate (in ms)

Vocoder [n] Maximum Packet Rate (multiples of Basic Rate)