Display Filter Reference: Inter-Asterisk eXchange v2
Protocol field name: iax2
Versions: 1.0.0 to 4.4.2
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| Field name | Description | Type | Versions |
|---|---|---|---|
| iax2 | Absolute Time | Date and time | 1.0.0 to 4.4.2 |
| iax2 | Call identifier | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | ADPCM | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Raw A-law data (G.711) | Boolean | 1.0.0 to 4.4.2 |
| iax2 | G.719 (64 kbps assumed) | Boolean | 3.0.0 to 4.4.2 |
| iax2 | G.722 | Boolean | 1.8.0 to 4.4.2 |
| iax2 | G.723.1 compression | Boolean | 1.0.0 to 4.4.2 |
| iax2 | ADPCM (G.726, 32kbps, RFC3551 codeword packing) | Boolean | 1.0.0 to 4.4.2 |
| iax2 | ADPCM (G.726, 32kbps, AAL2 codeword packing) | Boolean | 1.8.0 to 4.4.2 |
| iax2 | G.729a Audio | Boolean | 1.0.0 to 4.4.2 |
| iax2 | GSM compression | Boolean | 1.0.0 to 4.4.2 |
| iax2 | H.261 video | Boolean | 1.0.0 to 4.4.2 |
| iax2 | H.263 video | Boolean | 1.0.0 to 4.4.2 |
| iax2 | H.263+ video | Boolean | 1.8.0 to 4.4.2 |
| iax2 | H.264 video | Boolean | 1.8.0 to 4.4.2 |
| iax2 | iLBC Free Compression | Boolean | 1.0.0 to 4.4.2 |
| iax2 | JPEG images | Boolean | 1.0.0 to 4.4.2 |
| iax2 | LPC10, 180 samples/frame | Boolean | 1.0.0 to 4.4.2 |
| iax2 | MPEG4 video | Boolean | 1.8.0 to 4.4.2 |
| iax2 | Opus audio (8kHz, 16kHz, 24kHz, 48Khz) | Boolean | 3.0.0 to 4.4.2 |
| iax2 | PNG images | Boolean | 1.0.0 to 4.4.2 |
| iax2 | G.722.1 Annex C (also known as Siren14, 48kbps assumed) | Boolean | 1.8.0 to 4.4.2 |
| iax2 | G.722.1 (also known as Siren7, 32kbps assumed) | Boolean | 1.8.0 to 4.4.2 |
| iax2 | Raw 16-bit Signed Linear (8000 Hz) PCM | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Raw 16-bit Signed Linear (16000 Hz) PCM | Boolean | 1.8.0 to 4.4.2 |
| iax2 | SpeeX Free Compression | Boolean | 1.0.0 to 4.4.2 |
| iax2 | SpeeX Wideband (16kHz) Free Compression | Boolean | 3.0.0 to 4.4.2 |
| iax2 | T.140 Text format - ITU T.140, RFC 4103 | Boolean | 3.0.0 to 4.4.2 |
| iax2 | T.140 RED Text format RFC 4103 | Boolean | 3.0.0 to 4.4.2 |
| iax2 | Raw testing-law data (G.711) | Boolean | 3.0.0 to 4.4.2 |
| iax2 | Raw mu-law data (G.711) | Boolean | 1.0.0 to 4.4.2 |
| iax2 | VP8 video | Boolean | 3.0.0 to 4.4.2 |
| iax2 | Circuit ID conflict | Label | 1.12.0 to 4.4.2 |
| iax2 | Control subclass | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Destination call | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | DTMF subclass (digit) | Character string | 1.0.0 to 4.4.2 |
| iax2 | IAX2 Fragment data | Frame number | 1.0.0 to 4.4.2 |
| iax2 | Fragment count | Unsigned integer (32 bits) | 1.6.0 to 4.4.2 |
| iax2 | Defragmentation error | Frame number | 1.0.0 to 4.4.2 |
| iax2 | Multiple tail fragments found | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Fragment overlap | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Conflicting data in fragment overlap | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Fragment too long | Boolean | 1.0.0 to 4.4.2 |
| iax2 | IAX2 fragment, unfinished | Byte sequence | 2.0.0 to 4.4.2 |
| iax2 | IAX2 Fragments | Label | 1.0.0 to 4.4.2 |
| iax2 | HTML subclass | Unsigned integer (8 bits) | 1.12.0 to 4.4.2 |
| iax2 | HTML URL | Character string | 1.12.0 to 4.4.2 |
| iax2 | AES Provisioning info | Character string | 1.0.0 to 4.4.2 |
| iax2 | Address | IPv4 address | 1.0.0 to 4.4.2 |
| iax2 | Family | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Port | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Challenge data for MD5/RSA | Character string | 1.0.0 to 4.4.2 |
| iax2 | MD5 challenge result | Character string | 1.0.0 to 4.4.2 |
| iax2 | Authentication method(s) | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | RSA challenge result | Character string | 1.0.0 to 4.4.2 |
| iax2 | Request auto-answering | Label | 1.0.0 to 4.4.2 |
| iax2 | Call number of peer | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Context for number | Character string | 1.0.0 to 4.4.2 |
| iax2 | Number/extension being called | Character string | 1.0.0 to 4.4.2 |
| iax2 | Calling number ANI for billing | Character string | 1.0.0 to 4.4.2 |
| iax2 | Name of caller | Character string | 1.0.0 to 4.4.2 |
| iax2 | Calling number | Character string | 1.0.0 to 4.4.2 |
| iax2 | Calling presentation | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Calling transit network select | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Calling type of number | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Actual codec capability | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | 64-bit codec capability | Unsigned integer (64 bits) | 3.0.0 to 4.4.2 |
| iax2 | Cause | Character string | 1.0.0 to 4.4.2 |
| iax2 | Hangup cause | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Codec negotiation | Character string | 1.0.0 to 4.4.2 |
| iax2 | CPE ADSI capability | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Data call format | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Date/Time | Date and time | 1.0.0 to 4.4.2 |
| iax2 | Date/Time | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Device type | Character string | 1.0.0 to 4.4.2 |
| iax2 | Dialplan status | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Originally dialed DNID | Character string | 1.0.0 to 4.4.2 |
| iax2 | Encryption key | Character string | 1.0.0 to 4.4.2 |
| iax2 | Encryption format | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Firmware version | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Desired codec format | Unsigned integer (64 bits) | 1.0.0 to 4.4.2 |
| iax2 | 64-bit codec format | Unsigned integer (64 bits) | 3.0.0 to 4.4.2 |
| iax2 | Firmware block of data | Character string | 1.0.0 to 4.4.2 |
| iax2 | Firmware block description | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Unknown IAX command | Byte sequence | 1.0.0 to 4.4.2 |
| iax2 | Desired language | Character string | 1.0.0 to 4.4.2 |
| iax2 | Request musiconhold with QUELCH | Label | 1.0.0 to 4.4.2 |
| iax2 | How many messages waiting | Signed integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Password for authentication | Character string | 1.0.0 to 4.4.2 |
| iax2 | Provisioning info | Character string | 1.0.0 to 4.4.2 |
| iax2 | Provisioning version | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Referring DNIS | Character string | 1.0.0 to 4.4.2 |
| iax2 | When to refresh registration | Signed integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Max playout delay in ms for received frames | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Dropped frames (presumably by jitterbuffer) | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Received jitter (as in RFC1889) | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Received loss (high byte loss pct, low 24 bits loss count, as in rfc1889) | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Frame received out of order | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Total frames received | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Supported sampling rates | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Service identifier | Character string | 1.0.0 to 4.4.2 |
| iax2 | IAX subclass | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Transfer Request Identifier | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Unknown | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Unknown | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Unknown | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Unknown | Character string | 1.0.0 to 4.4.2 |
| iax2 | Username (peer or user) for authentication | Character string | 1.0.0 to 4.4.2 |
| iax2 | Protocol version | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | IE id | Unsigned integer (8 bits) | 2.0.0 to 4.4.2 |
| iax2 | Invalid length | Label | 2.0.0 to 4.4.2 |
| iax2 | Invalid timestamp | Label | 2.0.11 to 2.0.16, 2.2.5 to 2.6.20 |
| iax2 | Inbound seq.no. | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Lateness | Time offset | 1.0.0 to 4.4.2 |
| iax2 | Length | Unsigned integer (8 bits) | 2.0.0 to 4.4.2 |
| iax2 | Modem subclass | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Outbound seq.no. | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Packet type | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | IAX2 payload | Byte sequence | 2.0.0 to 4.4.2 |
| iax2 | Peer address unsupported | Label | 1.12.0 to 4.4.2 |
| iax2 | Reassembled IAX2 length | Unsigned integer (32 bits) | 1.4.0 to 4.4.2 |
| iax2 | IAX2 fragment, reassembled in frame | Frame number | 1.0.0 to 4.4.2 |
| iax2 | Retransmission | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Source call | Unsigned integer (16 bits) | 1.0.0 to 4.4.2 |
| iax2 | Unknown subclass | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Text subclass | Unsigned integer (8 bits) | 1.12.0 to 4.4.2 |
| iax2 | Text | Character string | 1.12.0 to 4.4.2 |
| iax2 | Timestamp | Unsigned integer (32 bits) | 1.0.0 to 4.4.2 |
| iax2 | Too many transfers for iax_call | Label | 1.12.0 to 4.4.2 |
| iax2 | Data length | Unsigned integer (16 bits) | 1.4.0 to 4.4.2 |
| iax2 | Data | Byte sequence | 1.8.0 to 4.4.2 |
| iax2 | Source call number | Unsigned integer (16 bits) | 1.4.0 to 4.4.2 |
| iax2 | Timestamp | Unsigned integer (16 bits) | 1.4.0 to 4.4.2 |
| iax2 | Command data | Unsigned integer (8 bits) | 1.4.0 to 4.4.2 |
| iax2 | Trunk timestamps | Boolean | 1.4.0 to 4.4.2 |
| iax2 | Meta command | Unsigned integer (8 bits) | 1.4.0 to 4.4.2 |
| iax2 | Number of calls | Unsigned integer (16 bits) | 1.4.0 to 4.4.2 |
| iax2 | Type | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | Version | Unsigned integer (8 bits) | 3.0.0 to 4.4.2 |
| iax2 | CODEC | Unsigned integer (64 bits) | 1.0.0 to 4.4.2 |
| iax2 | Marker | Boolean | 1.0.0 to 4.4.2 |
| iax2 | Marker | Unsigned integer (16 bits) | 2.2.0 to 4.4.2 |
| iax2 | Video Subclass (compressed codec no) | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |
| iax2 | CODEC | Unsigned integer (64 bits) | 1.0.0 to 4.4.2 |
| iax2 | Voice Subclass (compressed codec no) | Unsigned integer (8 bits) | 1.0.0 to 4.4.2 |