How to Configure a Cisco 7940 Phone
2 Views
````markdown
# How to Configure a Cisco 7940 Phone
### Step 1
Go to `\\10.10.10.10`
### Step 2
Access the folder **TFTP-Root**
Here you can find the **SIP Flash Image** for your phone.
If the version is not the correct one, go to the **Cisco website**, look for the phone model you want to update, and download the corresponding **SIP Flash Image**.
Then save the files in the **TFTP-Root** folder.
### Step 3
Once you have the right SIP Flash Image, make sure that the first line in `SIPDefault.cnf` corresponds to the correct image version that you have:
```ini
image_version: "P0S3-07-5-00"
````
### Step 4
Access the folder **Config**
### Step 5
Here you can set the phone with the client information.
### Step 6
Make a copy of the following three files:
```
CTLSEPmac.tlv
SEPmac.cnf
SIPmac.cnf
```
### Step 7
Replace **"mac"** in each file’s name with the **MAC address** of the phone you want to update.
Example:
```
SIPmac.cnf → SIP0009433cd627.cnf
CTLSEPmac.tlv → CTLSEP0009433cd627.tlv
SEPmac.cnf → SEP0009433cd627.cnf
```
### Step 8
Open the file `SIPmac.cnf` with **Notepad++**, and modify the following two lines:
```ini
line1_authname: ""
line1_password: ""
```
You can find the `authname` and `password` in the client's info (`services >> corresponding line`).
### Step 9
Now you can plug in the phone and wait for it to **update automatically**.
---
✅ **Your phone is now configured!**
```
```