# SNOM phone responds very slowly after auto-provisioning

If Snom phones have been autoprovisioned and contact synchronization is also enabled, it may happen that the phone sometimes does not respond to commands at all or only with a significant delay. This is usually due to a too large number of contacts that are synchronized regularly.

In that case, the **intervals** should be increased in which the contacts are resynchronized:

Log in to the Snom web interface ➔ Identity ➔ Functions ➔ Phone download interval

Here you can set the intervals for a synchronization, maximum 1209600 seconds (= 14 days).

{% hint style="info" %}
Important: If you enter 0 as the interval, the phone will only sync on restart and not otherwise.
{% endhint %}

Alternatively, synchronization can also be set to a **specific time** of day. In the following example, synchronization takes place every day at 23:00:

{% code title="snom-provisioning-config.xml" %}

```xml
<prov_polling_enabled perm="RW">on</prov_polling_enabled>
<prov_polling_mode perm="RW">abs</prov_polling_mode>
<prov_polling_time perm="RW">23:00</prov_polling_time>
```

{% endcode %}

Further information can be found in the [Snom Help Center](https://service.snom.com/display/wiki/tbook_download_interval) to be found.


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