Video & Collaboration Services » Videoconferencing » Gatekeeper Prefixes
| Prefix | Description | Reserved Parties | Media | Participants On Screen | Bit Rate | T.120 | Video Format | Picture Format | Frame Rate |
| 7811 | VoIP Small Conf. | 8 | Voice | N/A | 64 | No | N/A | N/A | N/A |
| 7812 | VoIP Med. Conf. | 16 | Voice | N/A | 64 | No | N/A | N/A | N/A |
| 7813 | VoIP Large Conf. | 24 | Voice | N/A | 64 | No | N/A | N/A | N/A |
| 7814 | VoIP Huge Conf. | 32 | Voice | N/A | 64 | No | N/A | N/A | N/A |
| 7821 | Class CP ASO No Data | 7 (up to 15) | Video | Dynamic (1-10) | 384 | No | H.263 | CIF | 30 |
| 7823 | Class CP ASO Data | 7 (up to 15) | Video, Data | Dynamic (1-10) | 384 | Yes | H.263 | CIF | 30 |
| 7825 | Class CP CU No Data | 7 (up to 15) | Video, Data | Dynamic (1-10) | 384 | No | H.263 | CIF | 30 |
| 7827 | Class CP CU Data | 7 (up to 15) | Video, Data | Dynamic (1-10) | 384 | Yes | H.263 | CIF | 30 |
| 7841 | CP ASO No Data | 6 (up to 12) | Video | Dynamic (1-10) | 384 | No | H.263 | CIF | 30 |
| 7843 | CP ASO Data | 6 (up to 12) | Video | Dynamic (1-10) | 384 | No | H.263 | CIF | 30 |
| 7845 | CP CU No Data | 6 (up to 12) | Video | Dynamic (1-10) | 384 | No | H.263 | CIF | 30 |
| 7847 | CP CU Data | 6 (up to 12) | Video | Dynamic (1-10) | 384 | Yes | H.263 | CIF | 30 |
| 7852 | Mid Quality Large Size | 10 | Video | 1 | 768 | No | H.263 | CIF | 30 |
| 7871 | Cont. Pres. Small 4X | 8 (up to 12) | Video | 4 | 384 | No | H.263 | CIF | 30 |
| 7876 | Cont. Pres. Med. 7X Data Conf. | 5 (up to 10) | Video, Data | 7 | 384 | Yes | H.263 | CIF | 30 |
| 7877 | Cont. Pres. Med. 7X | 2 (up to 15) | Video | 4 | 384 | No | H.261 | CIF | 15 |
| 7881 | Test ID | 3 (up to 5) | Video | 1 | 384 | No | H.264 | CIF | 30 |
| 7899 | Data Only T.120 | 7(up to 15) | Data | N/A | N/A | Yes | N/A | N/A | N/A |
| 0013522734981 | GDS dailed MCU Conference | 7 (up to 10) | Video | Dynamic (1-10) | 384 | No | H.263 | CIF | 30 |