SL Series Mobile Extension Quick Reference Guide 
Thank you for purchasing NEC “SL Series” system. 
Due to the flexibility built into the system, your Dialing Codes and Feature Capacities may differ from those in this guide. 
Check with your Supplier / System Administrator and make a note of any differences.   
LIABILITY DISCLAIMER 
NEC Corporation reserves the right to change the specifications, functions, or features, at any time, without notice. 
NEC Corporation has prepared this document for use by its employees and customers. The information contained herein is the property of NEC 
Corporation and shall not be reproduced without prior written approval from NEC Corporation. 
Copyright 2011  NEC Corporation 
 
Answering Calls 
A50-031933-001     Issue-1.0 May 2011 
NEC Corporation
 
Placing Calls 
Dial codes for outside lines : 
1. Lift handset. 
2. Dial personal DDI or allocated number. 
Listen for dial tone. 
3. Dial 
9 or 0 and Outside number. 
or 
Dial 
8 0 4 and Line group number (1-9 or 01-25) 
and Outside number. 
or 
Dial 
# 9 or # 0 and Line number (e.g., 005 for 
line 5) and Outside number. 
 Camp On and Callback 
When you hear busy tone, use Camp On 
or Callback :
 
1. Dial 
8 5 0 to Camp On. (Wait without hanging up)
(Intercom Calls) When you hear ringing, wait for 
the called party to answer. 
(Outside Calls) When you hear new dial tone, 
begin dialing your number. 
or 
Dial 
8 5 0 and hang up to leave a Callback. 
Wait for the system to call you back. 
2. Lift handset when the system rings you back. 
3. Dial 
  to accept call. 
(Intercom Calls) Speak to co-worker. 
(Outside Calls) Begin dialing your number. 
Listen for ringing :
 
1. Lift the handset. 
2. Dial 
  to accept call. 
Use Conference to have a telephone meeting :
 
1. Place or answer call. Dial 
  # listen for tone, and 
dial 
8 2 6. 
2. Place / answer next call. Dial 
  # listen for tone, 
and dial 
8 2 6. 
You may have up to 16 callers. Your software 
determines if there is any restriction on the 
number of outside parties. Repeat this step to 
add more parties. 
3. After adding all parties, dial 
  # twice to set up 
the Conference. 
Placing an Outside Call … 
Dial using the Intercom : 
1. Lift handset. 
2. Dial personal DDI or allocated number. 
Listen for dial tone. 
3. Dial co-worker’s extension number. 
Your call will ring or voice-announce. If you hear 
ringing, wait for an answer. If you hear two beeps, 
begin speaking. Dialing 1 changes voice/ring 
mode. 
or 
For Paging, dial 
8 0 1 and 0 for All Call, or 1-32 
for zones. 
or  
For your mailbox, dial 
  8. 
Calling a Co-Worker, Paging 
and Voice Mail … 
If your call doesn’t go through … 
Answering Outside / Intercom 
Calls … 
Picking up calls not ringing 
your phone … 
When a call is ringing a co-worker’s phone within 
your group : 
1. Lift handset. 
2. Dial personal DDI or allocated number. 
Listen for dial tone. 
3. Dial 
  #. 
Have a telephone meeting 
(Conference) … 
Handling Your Calls 
Your call can wait at your phone …
 Hold 
Use Hold instead of leaving the handset 
off-hook :
 
1. Do not hang up and dial 
  #. 
This puts your call on Exclusive Hold. If you go on 
hook, the held call will ring back. 
To place the call on Group Hold (so only those in 
your Department can pick up the call), dial 832 
after dialing * #. You can go on hook. 
To cancel your Callback :
 
1. Lift handset. 
2. Dial personal DDI or allocated number. 
Listen for dial tone. 
3. Dial 
8 7 0 and hang up. 
 
To pick up a call at a specific co-worker’s phone :
1. Lift handset. 
2. Dial personal DDI or allocated number. 
Listen for dial tone. 
3. Dial 
    and co-worker’s extension number. 
Easily retrieve a call from Hold :
 
1. Dial 
  #. 
To retrieve a call from Group Hold, dial 862 
instead of dialing 
  #. 
Transferring your calls … 
 Transfer 
Send (Transfer) your call to a co-worker : 
1. Do not hang up and dial 
  #, and dial your 
co-worker’s extension. 
To transfer the call to a co-worker’s mailbox, dial 
the Voice Mail master number before their 
extension. 
2. (Option) Announce the call when your co-worker 
answers. 
3. Hang up to transfer the call through.