Tag: Unified Communications

  • Trifecta Telephony
  • March 28, 2022

No Ringback on SIP calls

You may have ringback for some calls, but not others. The difference in the SIP signaling is that you may find that the carrier might be sending a 183 PROGRESS, rather than a 180 ringing. For the SBC to allow the ringback to come from the carrier, then we need to make sure the Audiocodes… Continue reading No Ringback on SIP calls

  • Trifecta Telephony
  • March 28, 2022

ShoreTel Dial Plan for Tiawan

These are two custom dial plansSite Plan:<001X.>xxx+X.G<002X.>xxxX.%9G<00[3-8]X.>xX.%9G<+MX.>xm0X.G Trunk Dial Plan:<+M2X.>xmX.%999G<+M[3-8]X.>xm0X.%999G

  • Trifecta Telephony
  • March 28, 2022

Polycom Server Setup

This is the configuration that was used for a VX400 VX410 series Polycom phones. Some documentation: Primary support page for Polycom VX4xx phones: https://support.polycom.com/content/support/emea/emea/en/support/voice/business-media-phones/vvx400-and-410.html DHCP Offset for Option 042 https://www.cisco.com/c/en/us/support/docs/broadband-cable/cable-modem-termination-systems-cmts/12188-calculate-hexadecimal-dhcp.html Prerequisites: Factory reset your phone How to reset your Polycom VVX phone Press and hold buttons 1, 3, and 0 to force the phone to… Continue reading Polycom Server Setup

First create your trunk if you haven’t done so already.Now go to sites and create a new Number plan so that you can track the CALLED TO number. In this example we assigned the Classification to “Restricted” as we did not want to interrupt an already existing default classification. Now Create a new Outbound Route. We named… Continue reading PureCloud – Adding an Outbound Route for specific phone number

  • Trifecta Telephony
  • March 28, 2022

PFX to CRT – OpenSSL commands

openssl pkcs12 -in domain.pfx -clcerts -nokeys -out domain.cer openssl pkcs12 -in domain.pfx -nocerts -nodes  -out domain.key    For Audiocodes:openssl pkcs12 -in domain.pfx -clcerts -nokeys -out domain.cerrename domain.cer to domain.pem openssl pkcs12 -in domain.pfx -nocerts -nodes  -out domain.key   rename domain.key to domain-key.pem

  • Trifecta Telephony
  • March 24, 2022

ShoreTel multiple 200 OK response SIP messages

This is because the SBC is using a FQDN (in the SIP contact host field) and the switch is trying to populate an IP address. Change it to the the IP of the ShoreTel switch instead.