Kamailio alternatives

Nearest on its board

1. 7
   IV

   Infobip Voice APIinfobip.com
   6.0 APIOpenFree —
   →
2. 9
   DN

   D7 Networksd7networks.com

   D7 Networks provides global business messaging services covering SMS, WhatsApp, Viber, number lookup and two-factor verification.

   5.9 APIOpenFree $0.01 one-time
   →
3. 6
   F

   FreeSWITCHsignalwire.com

   FreeSWITCH is an open-source framework for real-time voice and video that can route calls, bridge video, transcode media, and connect protocols.

   6.2 APIOpenFree Free tier
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4. 10
   PV

   Plivo Voice APIplivo.com
   5.9 APIOpenFree From $1,000/mo
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5. 5
   TS

   Telnyx SIP Trunkingtelnyx.com

   Telnyx provides carrier-operated SIP trunking for inbound and outbound PSTN calling over the internet.

   6.2 APIOpenFree —
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6. 11
   A

   Asteriskasterisk.org

   Asterisk is an open source framework for building communications applications and turns an ordinary computer into a communications server.

   5.9 APIOpenFree Free tier
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7. 4
   C

   Callrcallr.com

   Callr provides programmable voice, SMS, call tracking, conversation intelligence and AI voice agents on its own carrier network.

   6.2 APIOpenFree From €599/mo
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8. 12
   SI

   SIP.IOsip.io

   SIP.IO describes itself as an edge-native programmable voice and cloud contact center platform for UCaaS, CCaaS, and Voice AI.

   5.9 APIOpenFree Free tier
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9. 3
   AC

   Aculab Cloudaculab.com

   Aculab Cloud provides APIs for voice and video calls, messaging, and inbound and outbound fax.

   6.3 APIOpenFree Free tier
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10. 13
    AC

    Amazon Chime SDK PSTN Audioaws.amazon.com

    Amazon Chime SDK lets developers embed real-time communication capabilities in their applications.

    5.5 APIOpenFree —
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11. 2
    Y

    YateClientyate.ro

    YateClient is an instant messenger and softphone based on Yate.

    6.3 APIOpenFree Free tier
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12. 14
    4

    46elks46elks.com

    46elks describes itself as a telecom API for applications to send SMS, receive MMS photos, and make automatic phone calls.

    5.3 APIOpenFree From €3/mo
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13. 1
    WP

    Wazo Platformwazo-platform.org

    Wazo Platform is an open-source project for building carrier-grade programmable IP communication infrastructures.

    6.7 APIOpenFree Free tier
    →
14. 15
    CA

    CallFire APIdevelopers.callfire.com
    5.0 APIOpenFree From $99/mo
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15. 16
    SI

    sipgate.iosipgate.io
    4.9 APIOpenFree Free tier
    →
16. 17
    AC

    Amazon Chime SDK Voice Connectordocs.aws.amazon.com

    Provides SIP trunking service for an existing phone system, connecting it to the PSTN and Amazon Chime SDK meetings.

    4.8 APIOpenFree —
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17. 18
    D

    drachtiodrachtio.org
    4.8 APIOpenFree Free tier
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18. 19
    F

    Fonosterfonoster.com
    4.8 APIOpenFree Free tier
    →
19. 20
    J

    jambonzjambonz.org
    4.8 APIOpenFree Free tier
    →
20. 21
    TV

    Telnyx Voice APItelnyx.com
    4.7 APIOpenFree From $500/mo
    →