SIP Response Codes 1xx—Provisional Responses 100 Trying ExtendedThe search being performed may take a significant time so a forking proxy must send a 100 Trying response. 180 Ringing DestinationUser agent received INVITE, and is alerting user... Read More

SIP Response Codes 1xx—Provisional Responses 100 Trying ExtendedThe search being performed may take a significant time so a forking proxy must send a 100 Trying response. 180 Ringing DestinationUser agent received INVITE, and is alerting user... Read More

ISDN hangup cause codes provide information as to why a call has been terminated many are shared with SIP.  The list of hangup cause codes below provides detailed information as to the underlying cause behind a call hangup: Code No. 0 This is... Read More

Overview On IC-talk HC Chan_SIP is the preferred option for an extension please DO NOT use PJSIP or other options unless specifically instructed to do so for a specific item. The default port number will be 5160 for Chan_SIP. This guide walks... Read More

Firewall & Security Guide In order for IP phones, portals and applications to be able to access the service, some firewalls may need adjusting to allow the traffic through.  If the End Customer is running inside to outside rules then ports... Read More

Overview The IVR module allows you to create one or more IVRs ("Interactive Voice Response" systems or Auto Attendants). You can then route calls to the IVR and play a recording prompting callers what options to enter, such as “press 1 for... Read More

General Notes & Good Practice for Faxing with Analogue Adaptors   Analogue adapters when used for faxes are very sensitive to delay / jitter on the network. The ideal location for the analogue device is as close to both the media manager... Read More