Sipura settings HKBN

Sample Sipura config for Pre-October 2005 Hong Kong BroadBand service

The following information has been deprecated. Please look at the "2b" setup for Sipura/Linksys devices

  • Account created before October 2005 (if your account is with HKBN's "2b" system, then you want to look here
  • Acct num used on Website: 699999997
  • Softphone password: abcdef9876
  • Phone number: 35129898

SIP > RTP Parameters
RTP Packet Size: 0.020

Line 1 > Proxy and Registration
Use Outbound Proxy: yes
Outbound Proxy:
Use OB Proxy In Dialog: yes
Register Expires: 120
Use DNS SRV: no

Line 1 > Subscriber Information
User ID: 699999997
Password: abcdef9876

Line 1 > Audio Configuration
DTMF Tx Method: InBand

Symmetric RTP: yes (if it's a SPA-3000)

Network Address Translation Situation

If you are behind a Firewall/NAT router, you have two options:
  1. Portforwarding
  2. STUN


The following ports must be portforwarded from your Firewall/NAT router to your SPA:
  • UDP 5060
  • The UDP port range specified from SIP > RTP Parameters > RTP Port Min until SIP > RTP Parameters > RTP Port Max

STUN Support

SIP > NAT Support Parameters
Handle VIA received: yes
Handle VIA rport: yes
Insert VIA received: yes
Insert VIA rport: yes
Substitute VIA Addr: yes
Send Resp To Src Port: yes
STUN Enable: yes
STUN Test Enable: yes
STUN Server: any public STUN server
NAT Keep Alive Intvl: 15 (can be increased after you are confident everything is configured properly)

Line 1 > NAT Settings
NAT Mapping Enable: yes
NAT Keep Alive Enable: yes
NAT Keep Alive Msg: $PING
NAT Keep Alive Dest: $PROXY

Dial Plan

Add the following to your dialplan to enable 8-digit and 852-prefixed 8-digit Hong Kong phone numbers. This diaplan should be added before the final right-parenthesis ')' character.

Line 1 > Dial Plan
Dial Plan: <852:>[23678]xxxxxxxS0|[236789]xxxxxxxS0

Therefore, if your original dialplan looked like this:
Dial Plan: ([2-9]xxxxxx|011xx.|1[2-9]xx[2-9]xxxxxx)

The new HK enabled dialplan would be:
Dial Plan: ([2-9]xxxxxx|011xx.|1[2-9]xx[2-9]xxxxxx|<852:>[236789]xxxxxxxS0|[236789]xxxxxxxS0)

Additionally, if you are still having problems, you might want to enable debugging on the SPA and submit the logs to the Linksys (Sipura) VoIP Support Forum or the VOIP Forum of

Sipura Documentation | Sipura | Hong Kong Broadband | STUN
Created by: chandave, Last modification: Tue 14 of Oct, 2008 (03:47 UTC) by msulis
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