MicroSIP vs Zoiper

MicroSIP is a free Windows desktop softphone for business communication and professional VoIP use. It makes voice and video calls through SIP providers or PBX systems, and can also call an IP address or domain name directly. Call Manager handles multiple simultaneous calls, conferences, blind and attended transfers, and instant messaging. Listed video codecs include H.264, H.263+, VP8, and VP9; DTMF options include in-band, RFC2833, and SIP INFO. SIP signaling can use TLS, while media protection options include SRTP and DTLS-SRTP. MicroSIP says it does not provide user accounts, phone numbers, or telephony services and has no access to end-user information. Windows is listed as supported; Linux, macOS, and BSD are listed for use via Wine. Android, iPhone, and iPad are not supported. The standard edition lists video support, while Lite does not. The project uses the GNU GPL v2 license. A custom-branded softphone build costs €150, paid once; future updates, modifications, or additional features are billed separately.

Zoiper is a service-independent VoIP softphone for voice and video calls, messaging, presence, and fax. It runs on Android and iOS, as well as Windows, Mac, and Linux; use requires a computer or smartphone, an internet connection, and a VoIP provider or PBX. Listed calling tools include forwarding, attended and unattended transfers, auto-answer, recording, and SIP conferencing. Zoiper 5 PRO lists TLS, SRTP, and ZRTP encryption protocols for voice, video, and chat. Contact features include Outlook and macOS Address Book integration, LDAP contacts, CSV import, and click-to-dial CRM connections such as Vicidial, CallPro, Nimble, Freshdesk, and Salesforce. Zoiper describes a Banafo integration that transcribes VoIP call recordings and produces titles, summaries, classifications, and entity extraction. Zoiper 5 Free costs nothing for non-commercial use, with one account and two lines. Mobile team licensing costs €29.88 a year, billed annually, for teams of at least 10 users. Zoiper 5 PRO is $59.95, paid once, with a perpetual license per seat and operating system.