Cti Server; Figure 221: Cti Server Listening Port - Grandstream Networks UCM6100 Series User Manual

CTI SERVER

UCM does support CTI server capabilities which are designed to be a part of the CTI solution suite provided by
Grandstream, including GXP21XX and GXP17XX enterprise IP phones along with GS Affinity app.
Mainly the UCM will by default listening on port TCP 8888 for the connections from GS affinity application in
order to interact, modify and serve data requests by the application which includes setting call features for the
connected extension as call forward and DND.
Users can change the listening port under the menu page, Web GUI→Value-added Features→CTI Server as
shown on below screenshot:

Figure 221: CTI Server Listening port

More information about GS affinity and CTI Support on Grandstream products series please refer to the following
link: http://www.grandstream.com/sites/default/files/Resources/GS_Affinity_Guide.pdf
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UCM6100 Series User Manual
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