NEC SL1000: Link up 2 x NEC SL1000 using IP

In terms of integration with NEC platforms or other vendors here are the possibilties for NEC SL1000;

• TDM - FXS/FXO, ISDN T & S Point
• IP - SIP trunk

In order to link up 2 x NEC SL1000 systems by IP connectivity, SIP trunk is the only way to achieve this setup. 

Below shows you what are the program commands required =>

As the SIP trunk setup is mirror on both SL1000 (only the IP address pointing, numbering is different) i will only give the config for 1 side.

1. Basic Setup for IP Trunk

PRG10-40-01: Set to 1

PRG10-40-02: Set it to minimum 4 (you will need your 4 x SIP trunk over here)

PRG10-03-02: Set to 1:SIP

2. Setup the SIP trunk

PRG10-12-09/10/03: Define your ip address, subnet mask, default GW

PRG84-26-01: Assign the ip address for the DSP resources (1 ip address per 16 dsp)

PRG10-17-01: Set to 2:Manual

PRG10-17-02: Define the ip address (same as your voip card ip address)

PRG10-18-01: set it to 11 (12 for the other system)

PRG10-23-01: set it to 1:yes

PRG10-23-02: point to the other system ip address

PRG10-23-04: set 12 (when user dial 12, it will point to this sip trunk)

PRG10-28-04: set it to 11 (12 for the other system)

PRG10-29-14: set to 0

PRG84-14-07/08: set it to 1800

do the same setup for the other NEC SL1000 system.

test it out by trying to make call across.