Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameters
Permitted Values
Default
emergency call.
If it is set to ELIN, the outbound identity used in the P-Asserted-Identity (PAI) header of the
SIP INVITE request is taken from the network using an LLDP-MED Emergency Location
Identifier Number (ELIN). The custom outbound identity configured by
“dialplan.emergency.custom_asserted_id” will be used if the phone fails to get the LLDP-
MED ELIN value.
If it is set to CUSTOM, the custom outbound identity configured by
“dialplan.emergency.custom_asserted_id” will be used; if the value of the parameter
“dialplan.emergency.custom_asserted_id” is left blank, the LLDP-MED ELIN value will be
used.
Note: If the obtained LLDP-MED ELIN value is blank and no custom outbound identity, the
PAI header will not be included in the SIP INVITE request.
Web User Interface:
None
Phone User Interface:
None
dialplan.emergency.custom_asserted_id
10-25 digits, SIP URI, or
TEL URI
Blank
Description:
Configures the custom outbound identity when placing an emergency call.
If using a TEL URI, for example, tel:+16045558000. The full URI is included in the P-
Asserted-Identity (PAI) header (e.g., <tel:+16045558000>).
If using a SIP URI, for example, sip:1234567890123@abc.com. The full URI is included in the
P-Asserted-Identity (PAI) header and the address will be replaced by the emergency server
(e.g., <sip:1234567890123@emergency.com>).
If using a 10-25 digit number, for example, 1234567890. The SIP URI constructed from the
number and SIP server (e.g., abc.com) is included in the P-Asserted-Identity (PAI) header
(e.g., <sip:1234567890@abc.com>).
Web User Interface:
None
Phone User Interface:
None
dialplan.emergency.server.X.address
(X ranges from 1 to 3)
IP address or domain
name
Blank
Description:
Configures the IP address or domain name of the emergency server X to be used for