# | Protokol | Transport | IP:Port(y) | Traffic direction | Note |
---|---|---|---|---|---|
1 | SIP | UDP | PBX_hostname:5060 | Outgoing, Incomming* | Call signaling |
4 | RTP | UDP | PBX_hostname:5004 - 20000** (Aastra/Grandstream) | Outgoing, Incomming* | Media |
5 | HTTPS | TCP | PBX_hostname:8089 | Outgoing, Incomming* | Communicator App |
7 | STUN/TURN | TCP,UDP | 212.71.175.51,212.71.175.52:3478, 3479, 5349 | Outgoing, Incomming* | Support for NAT traversal |
8 | HTTPS | TCP | PBX_hostname: 443 | Outgoing, Incomming* | Web interface (UI) |
9 | NTP | TCP,UDP | 212.71.128.13:123, 212.71.175.14:123 | Outgoing, Incomming* | Time server |
*) Incoming communication within an already established connection, comes from PBX (service) from the specified source port.
**) Depends on end device, described example is for Aastra a Grandstream.
Name | Protokol | Description | IP:ports |
---|---|---|---|
Google Firebase | https://communicator.firebaseio.com/ | Real-time database service | The service establishes a websocket connection |
Voice traffic - data | DTLS-SRTP | Encrypted voice communication | IP_PBX:dynamic port ( Can be limited by Chrome policy ) |
Voice traffic - signaling | WebSocket | Encrypted call signaling | IP_PBX:8089 |
WEBCOM API | https://webcom.ipex.cz | Webcom application and API | |
B2B API | https://restapi.ipex.cz | B2B API | |
PBX API | https://ipbxapi.voipex.io (213.168.161.130, 213.168.163.87, 213.168.163.2) | PBX API for management | |
Statistics | https://ipbx-stats.voipex.io | Call center statistics | |
Meetings API | https://meeting.voipex.io | API for videoconferencing | |
Amazon S3 | User photos |
Name | Domain | Description | IP addresses |
---|---|---|---|
Google Charts | https://www.google.com | Graphs for plotting call center statistics | |
Google Analytics | https://google-analytics.com | Statistics on the use of platform modules | |
CDN | https://cdnjs.cloudflare.com | CDN pro javascript knihovny (Bootstrap, Angular) | https://www.cloudflare.com/ips |
CDN IPEX | https://cdn.ipex.cz | CDN for javascript libraries (Bootstrap, Angular) | 212.71.175.50 |
PBX API | https://ipbxapi.voipex.io | PBX API pro management of PBXs | |
B2B API | https://restapi.voipex.io | B2B API |
Definition on central PBX IPEX: 212.71.129.36
Protocol | Transport | Ports | Codecs | Traffic direction |
---|---|---|---|---|
SIP | UDP | 5060 | G.711a, G.729, G.722, H.264 | IN/OUT |
RTP | UDP | 5000-20000 | G.711a, G.729, G.722, H.264 | IN/OUT |
Name | Domain | Description | IP addresses |
---|---|---|---|
PBX API | https://ipbxapi.voipex.io | PBX API for management PBXs |
Name | Standard | Value | Description |
---|---|---|---|
Delay | ITU-T G.114 | < 150 ms | Network packet delivery delay |
Jitter | < 30 ms | Variation in the amount of packet delay when passing through networks | |
Packet loss | < 1 % | Number of packets lost in percent | |
Bandwidth | 90Kbps | Data bandwidth for one speech channel (symmetrical, G711 codec) |
Theoretically, there is no minimum data rate for video calls, as the picture quality is automatically adjusted to the current capacity of the Internet connection (ie it can change during the call), however, the following applies to maintain a certain quality: