### Subscriber Service

Using the Push Subscription Service, the phone makes the following values known to the trusted subscription service server:

- IP Address of the Phone
- User’s Extension
- MAC Address
- Set ID, an eight-character model number which is fixed and does not change

- For a 9620 IP Telephone, the Set ID is 9620D01A
- For a 9630 IP Telephone, the Set ID is 9630D01A

The HTTP Push Subscription Message Syntax is as follows:

GET:http//<subscription_server>/<script_name>?MAC=xxx+Extn=xxx+ip=xxx+ SetID=xxx

Upon log on to the call server, the Push Subscription service updates all values. No unsubscribe event is sent upon user logoff.