Groundwire: VoIP SIP Softphone

Hushed: US Second Phone Number

talque

Gather Meetings

RAYNET CRM

MailTime: Secure Email Inbox

Communicator GO 7

White - calling & send airtime

Cisco Jabber

Streams for Zoho Mail

Nextplus: Phone # Text + Call

Talkyto - Twilio calls & SMS

Vyke: Second Phone/2nd Line