Cristian Bradiceanu » VoIP

SIP phone issues with Belkin ADSL Wireless Router

admin — Fri, 31 Aug 2007 11:16:50 +0000

The old Linksys WAG54Gv2 died so I replaced it with a brand new Belkin F5D7633uk4A. Everything working fine except two SIP accounts on my Siemens Gigaset S450 IP (“Authentication error”). Also I got authentication errors and SIP 408 Timeout with X-Lite using the same SIP accounts.

Also, Belkin web interface can not manage static routes, which is bad.

Version info:
Runtime Code version F5D7633-4Av1_UK_1.00.17 Boot Code Version 1.0.37-5.15 Hardware Version V1.0J3 ADSL Modem Code Version A2pB018e.d16f

Looks like there’s a transparent SIP proxy running on the router. I could ssh with admin username and web interface password to the router. Finally found siproxd running!

How to disable siproxd:
siproxd disable save reboot

How to add a static route:
route add IP NETMASK GATEWAY save

All available commands:
? help logout reboot adsl atm brctl cat ledctrl df dumpcfg echo ifconfig kill arp defaultgateway dhcpserver dns lan passwd ppp remoteaccess restoredefault route save swversion wan ping ps pwd siproxd sntp sysinfo tftp wlctl

Siemens Gigaset S450 IP

admin — Tue, 29 May 2007 06:46:05 +0000

Just replaced my C450 IP with S450 IP, mostly for multiple SIP accounts support.

Good things:
- can connect to up to six SIP accounts at the same time, plus gigaset.net
- can map SIP account and fixed line to DECT phones (both outgoing and incoming calls)
- reasonable DECT coverage
- NAT traversal using STUN
- works with asterisk
- S45 handset can be registered to multiple bases, allowing you to chose base or just best signal base

Bad things:
- can not choose what SIP account to use for outgoing calls on a call-by-call basis
- gigaset.net calls never worked for me
- R-key does not work with SIP
- no MWI (Message Waiting Indication) for VoIP calls
- slow handset response sometimes (tested with S45, C45 and C46 handsets)
- no automatic phonebook synchronization between handsets

One very interesting feature would be the possibility to use the Phone Line as a regular FXO port, allowing PSTN-to-VoIP and VoIP-to-PSTN calls.

Siemens Gigaset C450 IP

admin — Thu, 24 May 2007 14:01:46 +0000

I’ve had my C450 IP for one month now. Pretty happy with it, good range (at least better than Panasonic and my old Gigaset A-series), stable SIP connection (after firmware upgrade), reasonable battery life. Works with Asterisk (except the R-key to hold/transfer VoIP calls, but you can set the key in features.conf; and MWI).