CCSi Communications 
365 Surryse Rd, Ste 220, Lake Zurich, IL, 60047 | Tel: 630-241-0600 | Fax: 630-241-1071| tservices@ccsicomm.com 
www.ccsicomm.com 
Listen for the park slot where 
you call will be allocated 
(7001-7099) 
From any phone dial 
the park slot number 
to recover your call. 
- Enter 
Extension 
Number 
OR 
- Button Key 
Will allow you to intercom 
the extension without the 
other person picking up. 
The targeted receiver 
will have their 
speakerphone 
activated. 
Retrieve Group 
Messages/General 
Delivery messages 
Retrieve voicemail 
messages for a call 
group or phantom 
extension 
Extension/group 
number, then 
voicemail 
password 
Dial *98. You will be 
prompted to enter the 
extension, followed by the 
voicemail password  
Paging Overhead  
Warehouse 
Speakers 
Will page speakers in 
Warehouse 
Opening front and 
back doors 
Dial 2115# (Front 
lobby door) 
 
Dial 2116# 
(Warehouse lobby 
door) 
Dial 2115# and the 
front door latch will 
release.  
 
Dial 2116# and the 
Warehouse door 
latch will release. 
 
Hang up the phone 
to lock the door back 
in place. 
 
Configuring your phone’s button keys via the web user interface. 
1. Press the “OK” key on the phone to find the IP address of the phone. 
2. Enter the IP address into your web browser address bar, then hit ‘Enter’. 
3. Enter the user name (user) and password (user) in the login page and hit “Confirm”. 
4. Select DSSKey Tab to program keys. For  
T41S: Use Line Key 1-5, Line Key 6-10, and Line Key 11-15 accordingly. 
T46S: Use Line Key 1-9, Line Key 10-18, and Line Key 19-27 accordingly. 
 
The screen shot below depicts the Yealink T41P phone.