Call Controls
Polycom, Inc. 90
Hybrid Line Registration Limitations
The Hybrid Registration feature include the following limitations:
● Merging of local conference is only supported with open SIP registrations and not supported with
Skype for Business (bridging a Skype for Business with an open SIP line is not supported).
● Local merging of two point-to-point calls made using two different lines between two Polycom Trio
systems is not supported.
● Only call transfers between different SIP registrations with the same SIP call servers is supported.
Call transfer between SIP registrations on different SIP call servers is not supported.
● Transport Layer Security (TLS) encryption of Real-time Transport Protocol (RTP) media for secure
communication in hybrid Open SIP registrations is not supported.
Hybrid Line Registration Parameters
The following tables lists the parameters to configure dial plan and line switching for Hybrid Registration.
Dial Plan and Digit Map Parameters for Hybrid Registrations
Template Parameter Permitted Values Change Causes
Restart or Reboot
site.cfg dialplan.digit-
map.lineSwitch-
ing.enable
0 (default) - Disable the line switching in
dial plan to switch the call to the dial plan
matched line.
1 - Enable the line switching in dial plan
to switch the call to the dial plan matched
line.
This is not applicable for off-hook dialing.
No
reg.cfg
reg.limit
Specify the maximum number of lines to
use for registration.
1 (default)
12 maximum (1-3 supported)
No
sip-interop
.cfg
reg.1.mergeServerDig-
itMapLocally
1 (default) - Allows the dialplans from
dialplan.1.digitmap
to append on top
of the dialplans received from the server.
0 - Does not allow the dial plans from
dialplan.1.digitmap
to append on top
of the dialplans received from the server.
No
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