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 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) 0x01 Generic VDAC Support 0x02 G.723.1 Annex A Support 0x03 G.729 Annex B Support |
9 |
Data [5] Fax Relay Supported (bitmask) 0x01 Support using T.38 |
11 |
Data [6] Modem Relay Supported (bitmask) |
12 |
Data [7] Digit Relay Support (bitmask) 0x01 Support using RFC 2833 0x03 Support using RFC 2833 and Payload Type |
13 |
Data [8] RTP Redundancy Support (bitmask) 0x01 Support using RFC 2198 0x03 Support using RFC 2198 and Payload Type |
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) |