Digium Asterisk is ranked 4th in Unified Communications while Siemens OpenScape is ranked 9th in Unified Communications. Digium Asterisk is rated 0.0, while Siemens OpenScape is rated 0.0. On the other hand, Digium Asterisk is most compared with Kamailio SIP Server, 3CX Live Chat, Cisco Jabber, Cisco Unified Communications and Fortinet FortiVoice, whereas Siemens OpenScape is most compared with 3CX Live Chat, Cisco Unified Communications, Cisco UCM, Cisco Jabber and Mitel Application Suite.
We monitor all Unified Communications reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.