NEC Univerge SV9100 Manual page 351

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With the SIP Trunk E.164 CLIP Enhancement enabled, when an incoming SIP call

from an external ITSP is presented at the system with a + in the From header field as

the international access code, it is recognized and displayed as an international call

at the terminal display and also logged in the terminals incoming caller history,

allowing any outbound calls made from a multiline terminals caller history possible

using this numbering scheme.

This presentation can be a requirement of certain SIP ITSPs (Internet Telephony

Service Providers) so it is necessary the PBX can handle these calls and modify any

SIP messages to the correct format accordingly.

SV9100 Networking Manual

All Multiline Terminals

Required Component(s)

R2 Enhancement License (0412)

System Port License (0300)

VoIP Resource License (5103)

IP Trunk License (5001)

E.164 CLIP E

E.164 Enhancement is applied for the SIP trunk interface.

Outgoing call from caller history of incoming calls is only possible from

multiline terminals.

Netlink systems deployed in multiple countries using this feature may

not work correctly because the system will not know which international

code should be added at each node.