Mobile Extensions

From PBXes

(Difference between revisions)

Revision as of 21:33, 31 March 2009

Currently there is a number of mobile phones available in the market, which support VoIP over WLANs and 3G Data networks. This allows for all the features of PBXes to be available on a single handset at home, at the office and on the go. Some advantages over the plain GSM telephony are:

Unified CallerID. The PBXes CallerID will be shown to the called party, instead of the mobile phone's number.
Unified Music on hold based on your PBXes account selection, instead of carrier announcements.
Optional Time-based Routing, Ring Group participation, Privacy Manager.
Calls are billed as data on WLAN/3G plans, not as Mobile airtime.
Avoid high roaming costs by using hotspots when staying in hotels or passing through airports.

Before using VoIP services outside your private network, check with your mobile operator if he allows VoIP usage. We don't know the present contractual terms offered to end-users worldwide. So we cannot provide you with any legal advice in this area (it's your responsibility).

Provisioning of these Mobile extensions need to follow certain configuration, particularly with regard to seamless switch-over from WLAN/3G to mobile networks:

1 Phones
- 1.1 Nokia
- 1.2 Android
2 PBXes

Phones

Nokia

Installation of the following tools is recommended:

Psiloc Connect if you intend to use WLAN and 3G alternately for VoIP.
"VoIP settings" from Nokia to choose iLBC codec (compression reduces bandwidth usage from 1.2 MB per minute to 0.4 MB per minute).
pbxes.org/m tracking client to publish position on your webcall page.

Android

Install SIP software from:

sipdroid.org

To be able to listen to Voicemail in Emails change format in Source >> vm_general.inc to "format=wav|wav49".

PBXes

Add a SIP extension. After registering to it go on fine tuning:

Mobile Device Options

Mobile Option is set to "no".
On paid accounts you may enable "handoff" in this section. This feature holds calls while switching between networks. Handoff can be triggered manually by muting a call.
ConnectionCheck is usually set to "no". With Nokia handsets the mailbox of your mobile number needs to be de-activated. Set to "yes" if it can't be de-activated. This option is only available on paid accounts. SIP registration will be done every minute resulting in a total bandwidth usage of about 40 MB monthly.

Call Forwarding

Forward calls to your mobile number if unavailable or optionally busy. Usually also fork calls to your mobile (if you haven't used ConnectionCheck, see above).

Trunks

Numbers can be automatically converted from +xxx international format for IP calls by writing 011++|. into the trunk's rules (substitutes + by 011).

Outbound Routing

With some versions of Nokia firmware you may have problems on outgoing calls like choppy ring back tone or delayed call establishment. In this case add rules with EarlyConnect option turned on (only available on paid accounts). To cover multiple extensions use wildcards, either of the form "20." (all numbers beginning with 20) or "20[123]" (201, 202, 203).

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Retrieved from "http://345946.n0h2l.group/wiki/index.php/Mobile_Extensions"

 * Avoid high roaming costs by using hotspots when staying in hotels or passing through airports.
-'''Before using VoIP services outside your private network, check with your mobile operator if he allows VoIP usage. We don't know the present contractual terms offered to end-users worldwide. So we cannot provide you with any legal advice in this area.'''
+'''Before using VoIP services outside your private network, check with your mobile operator if he allows VoIP usage. We don't know the present contractual terms offered to end-users worldwide. So we cannot provide you with any legal advice in this area (it's your responsibility).'''
 Provisioning of these Mobile extensions need to follow certain configuration, particularly with regard to seamless switch-over from WLAN/3G to mobile networks: