Grandstream Networks GSM gateway - Manual (Page 23)

Februaray-2006 Page 23 / 42
MasterVoIP
VoIP to GSM Gateway
SIP User ID This field contains the user part of the SIP address for this phone. e.g., if the
SIP address is: sip:my_user_id@my_provider.com, then the SIP User ID is:
my_user_id. Please do NOT include the preceding “sip:” scheme or the host
portion of the SIP address in this field.
SIP User ID User account information, provided by VoIP service provider (ITSP), usually
has the digit form of a phone number (or is actually a phone number).
Authenticate ID SIP service subscriber’s ID used for authentication. Can be
identical to or, different from SIP User ID.
Authenticate
Password SIP service subscriber’s account password for GXP-2000 to register to (SIP)
servers of ITSP.
Name SIP service subscriber’s name which will be used for Caller ID display.
G723 Rate: This defines the encoding rate for G723 vocoder. By default, 6.3kbps rate is
chosen.
iLBC frame size This defines the size of the iLBC codec frame. The default setting is 20ms.
iLBC payload type This defines the iLBC payload type. The default setting is 97.
Preferred Vocoder VoIP Client ATA supports up to 7 different vocoder types including G711-ulaw
(PCMU), G711-alaw (PCMA), G723, G729A/B, G726-32 (ADPCM), G728,
and iLBC. Depending on the product model, some of these vocoders may not
be provided in a standard release.
A user can configure vocoders in a preference list that will be included with the
same preference order in SDP message. The first vocoder in this list can be
entered by choosing the appropriate option in “Choice 1”. Similarly, the last
vocoder in this list can be entered by choosing the appropriate option in
“Choice 7”.
Silence Suppression This controls the silence suppression/VAD feature of G723 and G729. If set to
“Yes”, when a silence is detected, a small quantity of VAD packets (instead of
audio packets) will be sent during the period of no talking. If set to “No”, this
feature is disabled.
Layer 3 QoS This field defines the layer 3 QoS parameter which can be the value used for IP
Precedence or Diff-Serv. Default value is 48
Layer 2 QoS This setting includes two fields. The 802.1Q/VLAN Tag contains the value
used for layer 2 VLAN tag. Default setting is blank. And 802.1p priority value
contains the value of the priority value.
Use DNS SRV This parameter controls whether the IP phone supports the DNS SRV route
function.