HP iPAQ 512 HP iPAQ 500 series Voice Messenger - Voice over IP (VoIP) Applicat - Page 4

Supported:  Originate and Terminate Calls  Caller ID  Call Waiting  Call Hold  Call Mute  Call Forwarding *only with a SIM card present o The number the call is forwarded to must be in a format [E.164] that can be validated on the GSM network.  Configuring Caller ID *only with a SIM card present  Configuring Call Waiting *only with a SIM card present  Call Barring *only with a SIM card present  Blind Transfer  In-Band and out-of-band DTMF o Out-of-band DTMF is requested by default. If the other end-point declines, in-band DTMF is used.  Emergency Calling (over GSM only) Interoperability testing with SIP-enabled IP PBX systems is being done to confirm feature functionality with each vendor's SIP implementation. Refer to subsequent sections of this document for test results. Not Supported:  Conferencing a second line  Consultative Transfer  Call Park/Pick-up  'Do Not Disturb'  Emergency Calling over IP A full list of the RFCs supported and not supported is included in Appendix A of this document. 4 Audio Quality This category is related to the components that need to be in the device to handle audio quality. Supported:  Automatic Gain Control