Recommended hardware
Specifications
Main principle - as powerful as possible. For single server solution we recommend:
| Component | Minimum requirement | Recommended | We provide as Hosted Solution | Comment |
| CPU | 4c/8t Xeon | any higher CPU | Germany: Intel(R) Xeon(R) CPU E3-1245-1270v6 USA: Single Quad, E3-1220/E3-1240 |
|
| RAM | 8 Gb | 16 GB or more | Germany: 32 GB USA: 16/32 GB |
|
| HDD | 100 Gb SDD (Solid State Drives) all space must be assigned to / partition; ext3 file system; 400 GB for M2 systems | 500 Gb or more, SDD (Solid State Drives), RAID Type 1 all space must be assigned to / partition; ext3 file system | Germany: 2 x 240 GB SSD RAID 1 USA: 120/128 GB SSD |
|
| OS | Linux Centos 6 | MOR: minimal Centos 6.x/7.x x86_64 M2: minimal Centos 6.x x86_64 Cloud PBX: minimal Centos 7.x x86_64 |
MOR: minimal Centos 6.x/7.x x86_64 M2: minimal Centos 6.x x86_64 Cloud PBX: minimal Centos 7.x x86_64 |
OS timezone must be set to UTC or at least to Timezone which does not have daylight saving |
| NIC | Any | Intel I210, I350 | Intel I210 | Realtek RTL8111/8168/8411, Intel 82574L are weak NICs, not recommended |
| Brand | Any | Intel, DELL, HP, Fujitsu | Intel |
It is required to have clean server without any additional packets installed.
Default Centos kernel is required for all functionality to work correctly.
Requirements for multi-server deployment
Asterisk or Freeswitch server: same requirements as above, except SSD would not increase performance so it is not needed and 4 GB of RAM is sufficient. CPU is most important component here. If Proxy solution is in use, Asterisks cannot be under NAT, it must have Public IP for SIP and RTP traffic. Must be located as close as possible to Database server to avoid problems caused by latency.
Database server: same requirements as above and SSD is highly recommended here. SSD is must if system has more than one Asterisk server. There should be 100GB or more space as database grows fast on high traffic. It is recommended to start with at least 400GB on M2 systems. Fast data storage device and CPU are most important here. If more than one Database server is in use, UPS (Uninterruptible Power Supply) devices must be used for these servers, otherwise power outage would cause broken replication. 8Gb RAM minimum. Must be located as close as possible to Asterisk server to avoid problems caused by latency.
GUI server: same requirements as above, except SSD would not increase performance a lot. HDD with more space is recommended here.
Proxy server: same requirements as above, except 4 GB of RAM and 40 GB on HDD will be enough here. SSD would not increase performance. Proxy server cannot be under NAT, it must have Public IP for SIP traffic.
Redundant servers: there are no special requirements on server hardware if server is part of redundant system. However, there are requirements for network to which servers are connected:
- Both servers should be within same subnet.
- Both servers should be able to broadcast packets to UDP 694 port.
- Both servers should be able to receive packets broadcasted by other server.
- There should be Virtual IP reserved in Subnet.
- Both servers should be able to work with that Virtual IP (only one server at same time).
If any of requirements above are not met, in some cases it is possible to adapt different network configurations or services (like "IP Failover"). However, management/configuration/development of third party software (like special scripts) needed to adapt special solution should be performed by servers owner.
Virtualization
MOR system was tested and working (with low call capacity) on following Virtualization technologies:
- VMware
- VirtualBox
- XEN
In general we do not recommend to run VoIP Core servers (with Asterisk/Freeswitch) on Virtual Machines.
GUI/DB servers on VM are acceptable.
FAQ
- Do you have the provision of STUN and TURN servers on your end?
No, we do not provide STUN servers. MOR should receive Public IPs on SIP headers. NAT traversal should be done on customer's side.
