User's Manual

Chapter 15 VoIP
B222s User’s Guide
126
The following t able describes t he labels in t his screen.
Table 49 VoI P > SI P > SI P Service Provider
LABEL DESCRIPTION
SI P Service Provider Selection
Service Provider
Selection
Select the SI P service provider pr ofile you want to use for the SI P account you configure
in t his screen. I f you change this field, t he screen aut om at ically refreshes.
General
SI P Service
Provider
Select t his if you want the LTE Device to use t his SI P provider. Clear it if you do not want
the LTE Device t o use t his SI P provider.
SI P Service
Provider Nam e
Enter t he nam e of your SI P service provider.
SI P Local Port Ent er t he LTE Device’s list ening port num ber, if your VoI P service prov ider gave you one.
Ot herwise, keep t he default value.
Main SI P Server
Address
Enter t he I P address or dom ain nam e of t he SI P server provided by your VoI P service
provider. You can use up to 95 print able ASCII charact ers. I t does not m at t er whet her t he
SI P server is a proxy, redirect or register server.
SI P Server Port Ent er t he SI P server ’s listening port num ber, if your VoI P service provider gave you one.
Ot herwise, keep t he default value.
REGI STER Server
Address
Enter t he I P address or dom ain nam e of t he SI P regist er server, if your VoI P service
provider gave you one. Ot herw ise, ent er t he sam e address you ent ered in t he SI P Ser ver
Addre ss field. You can use up to 95 print able ASCI I charact ers.
REGI STER Server
Por t
Enter t he SI P r egister server’s listening port num ber, if your VoI P service provider gave
you one. Otherwise, ent er the sam e port num ber you ent ered in t he SI P Se rve r Port
field.
SI P Service
Dom ain
Enter t he SI P service dom ain nam e. I n the full SI P URI , t his is t he part after t he @
sym bol. You can use up to 127 print able ASCII Extended set charact ers.
RFC Support
PRACK ( RFC
3262)
RFC 3262 defines a m echanism to provide r eliable t ransm ission of SI P pr ovisional
response m essages, which convey inform ation on t he processing progress of t he request .
This uses t he opt ion t ag 100r el and t he Provisional Response ACKnowledgem ent ( PRACK)
m et hod.
Select Suppor t e d or Requ ir ed t o have the LTE Device include a SI P Require/ Support ed
header field wit h t he option t ag 100rel in all I NVI TE requests. When the LTE Device
receiv es a SI P response m essage indicat ing t hat t he phone it called is ringing, the LTE
Device sends a PRACK m essage t o have bot h sides confirm t he m essage is received.
I f you select Suppor t ed, t he peer device support s t he opt ion t ag 100rel t o send
provisional responses r eliably.
I f you select Re quir e d, the peer device requires the opt ion t ag 100rel t o send provisional
responses reliably.
Select Disable d to t urn off t his funct ion.
DNS SRV Enabled
( RFC 3263)
Select t his option t o have t he LTE Device use DNS procedur es to resolve t he SI P dom ain
and find t he SI P server ’s I P address, port num ber and suppor ted t ransport pr otocol( s).
The LTE Device first uses DNS Nam e Aut hority Pointer ( NAPTR) records t o det erm ine the
transport prot ocols support ed by t he SI P ser ver. I t then perform s DNS Ser vice ( SRV)
query to det erm ine the port num ber for t he prot ocol. The LTE Device r esolves the SI P
server’s I P address by a st andard DNS address record lookup.
Session Tim er
( RFC 4028)
Select this t o have t he LTE Device support RFC 4028.
This m akes sure t hat SI P sessions do not hang and t he SI P line can alw ays be available
for use.
RTP Port Range