A SIP trunk is a direct connection between your organization and an Internet telephony service provider (ITSP). It enables you to extend voice over IP (VoIP) telephony beyond your organization’s firewall without the need for an IP-PSTN gateway. This simpler configuration is easier and less expensive to design, operate, maintain, and upgrade.

About Calncall Sip trunk service :

CalnCall Sip trunk provides high quality sip trunks for IP-Pbx and IP phones. We are certified with Major Ip-pbx system  like 3cx , Askizia , Allo , Asterisk , Grandstream , Cisco , Avaya , Beronet , Yealink , Hanlongetc .

Supported Codec :G.729, GSM, G.711A, G.711U

For sales enquiries, please call +65 63401005. Signup at http://www.calncall.com/sign-up/


For support enquiries, please call +65 63401006. Or support@calncall.com


    SGD 10/ Per Month

    Unlimited Concurrent call for outgoing and incoming.

    Rates above are applicable for a person residing in Singapore

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