Qualified IP-PBXs vs Supported IP-PBXs (see previous post)
Listed below are IP-PBX products and necessary firmware combinations that have been independently qualified. It is recommended that you visit the vendor's Web site for the latest information regarding PSTN/PBX, protocol, capacity, country support and documentation including a Quick Start Guide, release notes and known issues.
.jpg "Qualified for OCS 2007")
— "Qualified" +S —"Qualified with SRTP & TLS"
| Vendor | Configuration | Tested Product | Communications Server Version |
| 2007 R2 | 2007 |
| Aastra | IP-PBX | MX-ONE R3.2 | +S | |
| Altigen | IP-PBX | MAXCS, 6.5.0.1000 | | |
| Huawei Technologies | IP-PBX | SoftCo, V100R002 | | |
| Innovaphone | IP-PBX | IP6000, V7.00 ocs-certified 09-7034301 | | |
| Mitel | IP-PBX | 3300, 9.0.0.41 | | |
| Nortel | IP-PBX | CS 1000, 5.50.12 | +S | |
| Seltatel | IP-PBX | SAMoffice 4, 2.8.0 | | |
** See partner’s site for known issues and support notes