The deal will allow free* Skype-to-Skype calling over the Verizon network.

As The Inquirer points out, major mobile telecom network providers have been reluctant to embrace VoIP communications due to the effective change in business model which it could herald. The deal which is to be offered to US Verizon Wireless customers is seen as being a big push to take marketshare from AT&T who are only providing Skype for their iPhone customers.

*free meaning the call itself between the Skype clients, obviously the network costs remain.

It seems that the two operators are worried that the bundling of a voice-over-ip application with a smartphone would lose them voice-call revenue on their networks. The supposition being that users would opt for ‘cheap’ ‘unlimited’ data plans. From where I stand, ‘cheap’ ‘unlimited’ data plans are rather ‘invisible’ and I can’t really see voip being a lot cheaper in most cases except where the phone could be used with a non-network WiFi connection. Perhaps this is what actually worries O2 and Orange.

The cost of data plans also vary from country to country and both Orange and O2 are international operators so presumably there must be markets where their data plans are currently particularly cheap.

Naturally, if O2 and Orange choose to block the use of the N97 or it’s voice over ip abilities, they risk upsetting their customer base who may move to other operators such as T-Mobile who are said to be more ‘voip-friendly’.

While a number of debit and credit cards were already accepted, customers will now be able to use Paypal through their device to add land-line calling credit without the need to resort to using a web-browser equipped personal computer.

Rather than running Skype as a seperate application for Symbian, Nokia will be integrating Skype with the built-in address book to allow simple and direct calling/answering of Skype contacts.

The Nokia N97 handset provides both 3G and 802.11b/g WiFi connectivity so owners should be able to use Skype wherever they are.

Skype is a proprietary peer-to-peer VoIP protocol and as such can only communicate with other Skpe devices. There is no word yet as to whether the Nokia N97 or other future Nokia handsets will be supporting any open VoIP protocols such as SIP which would allow for greater interoperability.

Quite where that leaves other SIP and proprietary VoIP users on Comcast’s network is anybody’s guess.

Comcast also say they haven’t been blocking any rivals VoIP in the past either but accusations have been levelled at them.

Connection quality is critical for Voice over IP applications as you need as much of the data as possible to arrive in a timely manner. ‘Packet loss’ in a VoIP conversation can manifest itself as a degradation of quality in the call followed by the call actually breaking up and finally being dropped altogether when too few packets arrive. Delaying of data at the ISP level can cause issues where the latency of the call makes normal conversation difficult.

Jajah allows you to call a special number from a normal landline to make a long-distance connection using Voice Over IP. The new localisation of the service in Eastern Europe will provide a call-in number for those countries.

iPhone users will now be able to use a SIP application directly when connected to WiFi hotspots to make free or reduced cost calls over the internet.

This brings the iPhone in line with other WiFi enabled smartphone which have SIP functionality directly available.

Sipgate appear to be offering their free iPhone product via their USA, UK and Austrian websites although, if the software is truly SIP compliant, there shouldn’t be any geographic limitations to its use.

Hosted IP PBXs mean that the customer has no need to purchase and install potentially costly servers and associated hardware to run their IP PBX. The IP PBX is instead hosted by the service provider (in this case AVAD) who colocate the neccesary hardware, data connectivity and telephone lines in a data center.

An advantage of this approach is that teleworkers can communicate with the PBX at potentially higher data rates than one located behind a normal ADSL or Cable link. Further, having the PBX hosted at a major data center may improve performance features such a latency and throughput for large, distributed organisations.

The original question posed is by someone using a Linksys WRT54G wireless broadband router with Bittorrent and other high-bandwidth applications to consider. Unfortunately, the WRT54G isn’t quite cutting it when used alongside Vonage.

Inevitably for Slashdot, there is some gravitation toward open-source products. Open firmware for the WRT54G is suggested by some while another comment mentions that m0n0wall, an open-source firewall VPN distribution, can be deployed on relatively low-end commodity hardware and provides the type of QoS required.

The Jaxtr service appears to involve adding a widget to your website which then allows your website visitor to call you directly, send you a voicemail using VoIP or send an SMS to your mobile phone.

Jaxtr also offer reduced-cost distance/international calling services.