Common problems, Phone fails to display correct time and date, Phone can not contact host names – Siemens HIPATH 8000 User Manual

Page 242: Poor speech quality

Troubleshooting

242

Common problems

Phone Fails to Display Correct time and Date

• Ensure that the optiPoint 410/420 family S V7.0 phone’s time zone is

correct Æ page 225. If the time zone is incorrect and can not be edited

it has been configured by the DHCP server on start-up so check the

configuration of the DHCP server which is supplying the phone’s IP ad-

dress.

• Check that the phone’s Daylight Savings configuration is correct

• SNTP Address is correct and can be pinged Æ page 207. If the SNTP

Address can not be pinged and is a host name see Æ page 242.

• Ensure that the SNTP Server the phone is configured to is displaying

the correct time.

Phone Can Not Contact Host Names

• Ensure that the “DNS Domain Name” is correctly configured

• Ensure that the “Prim DNS IP addr” is correctly configured

Poor Speech Quality

• Poor speech quality can be the result of an overloaded network. Con-

sider the implementing VLANs Æ page 203 and QoS Æ page 208.

• Ensure that all IP endpoints in your system, including SIP Gateways,

are using compatible Speech Codec settings to avoid Duplex Miss-

• Ensure that the Room Character is correctly configured for the type of

room the phone is located in (see User Manual, chapter "Room Charac-

ter").

Display sticks at “Calling..” whenever call is attempted

• The most likely cause of this problem is that the phone can not contact

the SIP Server. Ensure that the SIP Server is active and can be pinged

by the phone Æ page 207.